factorize
a²-b²-20+1​

Answers

Answer 1

Answer:

(a+b)(a-b)-19

Step-by-step explanation:

a²-b²

=a²-ab+ab-b²

=a(a-b)+b(a-b)

=(a+b)(a-b)

it'll be more easy to understand if u try solving it the other way(from bottom to the top)

there fore... a²-b²=(a+b)(a-b)

and -20+1=-19

so then the ans will be(a+b)(a-b)-19


Related Questions

Brad says that the literal equation a = 3b + 4c - a is solved for a. Do you agree yes or no?

Answers

Answer:

No

Step-by-step explanation:

The literal equation a = 3b + 4c - a contain "a" on the right side so it is not solved for a.

What is the equation?

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

More than one variable may be present inside a linear equation. An equation is said to be linear if the maximum power of the variable is consistently unity.

A formula known as an equation uses the same sign to denote the equality of two expressions.

If we solve any equation for x then

x = f(other than x)

For example

x + 2x + 3y = 4

Solve for x will be

3x + 3y = 4

x = (4 - 3y)/3 so on right-hand side no x term is present.

Given the equation,

a = 3b + 4c - a

The right-hand side has termed "a" so it is not solved for a.

Hence "The literal equation a = 3b + 4c - a contain "a" on the right side so it is not solved for a".

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Find the solution to the equation or inequality below. You must type in the entire solution, for example x=5 if it is an equation or x>5 if it is an inequality.

5x - 9 = 26

Answers

5x - 9 = 26
5x - 9 + 9 = 26 + 9
5x = 35
5x/5 = 35/5
X = 7

SIMPLE QUESTION, 25 PTS: The cities G, H, and I, in respective order, lie approximately in a straight line. The distance from city G to city H is 72 miles. The distance from city G to city I is 92 miles. Find the distance from city H to city I.

Answers

Hey there! I'm happy to help!

From G to I is the total distance of the line (92). G to H is the first portion of the line (72) while H to I is the other portion.

To find H to I, simply subtract 72 from 92!

92-72=20

The distance from city H to city I is 20 miles.

Have a wonderful day! :D

Answer:

20

Step-by-step explanation:

valuate y = 3x - 5 when x = 6.

Answers

Answer:

y= 3x-5

  = 3*6 -5= 18-5 =13

Step-by-step explanation:

3(6) - 5
12 - 5
7




I think it would be correct

please help me with this

Answers

the answer is x= √10 or √-10

Answer: the answer is x^2=10

Step-by-step explanation:

5-2x^2=-15

step one {subtract 5 from both sides} {example- 5-2x^2-5=15-5step two {simplify} {example- -2x^2=-20step three {divide both sides by -2} {example- -2x^2 = -20{{disclaimer this is part of step three}}               -2            -2                                                           step four {simplify} {example- x^2=10

                                                                                                                                                           

What is the value of g? 2/5(g−7)=3 Enter your answer as a mixed number in simplest form in the box. g = $\text{Basic}$

Answers

Answer:

14 1/2

Step-by-step explanation:

I took the quiz in K12

Answer:

aye whatup my bros yall also in k12 noice im in 8th grd

Step-by-step explanation:

Rate of change please hurryyyy

Answers

the answer is 3/4 because the difference in Y divided by the difference in X is 3/4

Find f(4) for the function f(x) = 3x2 + x - 6

Answers

Answer:

f(4) = 46

Step-by-step explanation:

[tex]f(x)=3x^2+x-6\\f(4)=3(4)^2+4-6\\f(4)=3(16)+4-6\\f(4)=48+4-6\\f(4)=52-6\\f(4)=46[/tex]

The length of a board is 2 5/8 feet long . Of 5/6 of a foot is trimmed off ,find the new length

Answers

Answer:

I think it is 25 ft and 10 in

Step-by-step explanation:

BTW i'm probably wrong because my mom says i suck at math but friend me please lol

Answer:     1   19/24 ft

Step-by-step explanation: You multiply the fractions by the numbers needed to get the common denominator of 24 in this case 5/8 (put the two to the side for now.) multiply both top and bottom by 3 which will get you 15/24 then the whole number 2, your going to take it and subtract one from it so now there is only one whole number then with the one you subtracted you multiply (1x24)+15 *for the numerator* so now its 39/24 and for the second fraction 5/6 multiply both top and bottom by 4 now your fraction is 20/24 now...--> 39/24 - 20/24=19/24 and the left over whole number from the beginning goes down in front so the final answer is 1 19/24

Y = Mx + 5 what is the value of m

Answers

Answer:

Its the slope of the function

Step-by-step explanation:

can someone help pls 20 points

Answers

56 is between the whole numbers 49 and 64
56 is between those!!!!!!!!

solve inequality and show work please​

Answers

Answer: D
Subtract two from both sides and it will leave you with x>5

No sign change since there is no dividing from a negative sign
Should I explain it better ?

What is another name for line m in the figure below

Answers

Answer:

TV or VT

Step-by-step explanation:

A line is defined by the two points lying on an infinitely long straight paths.

From the picture attached,

There are two endless paths 'l' and 'm' which contain (R, U) and (V, T), intersecting at a point S.

Therefore, line 'm' will be represented by VT or TV.

And line 'l' will be represented by RU or UR.  

please help me out, algebra 2 question #9

Answers

Answer :

Perimeter of rectangle = 26

Length is 7 less than 9 times the width.

We have to find the width of rectangle[tex].[/tex]

_________________________________

Let, width of rectangle be x therefore length of rectangle will be (9x - 7)

We know that, perimeter of rectangle is given by

perimeter = 2 (length + width)

⇒ perimeter = 2 (l + b)

⇒ 26 = 2 [(9x - 7) + x]

⇒ 13 = x + 9x - 7

⇒ 20 = 10x

x = 2 (width)

Cheers!

Step-by-step explanation:

Let breadth be x

As it is given that, the Length is 7 less than 9 times :

Therefore, Length will be 9x - 7

Perimeter of reactangle = 26

➳ 2 ( Length + Breadth) = 26

➳ 9x - 7 + x = 26/2

➳ 10x = 13 + 7

➳ 10x = 20

x = 2

Therefore,

Breadth = x = 2

Length = 9x - 7 = 9(2) - 7 = 11

Please solve both step by step I'll mark you as brainliest

Answers

Answer:

5. -5x - 1

6. -x - 4

Step-by-step explanation:

5.

Distribute (get rid of parentheses):

-5x - 1

6.

Distribute (get rid of parentheses):

-x - 4

Answer:

5. -5x - (- 1)

6. -x - (- 4)

Step-by-step explanation:

-1(5x+1) distributed property

-5x - (- 1 )

-1(x+4) same do distributed property

-x - (-4)

A robot can complete 8 tasks in
5
hour. Each task takes the same amount of time.

Answers

Answer:

if you're asking how long each task takes, it should take 37.5 minutes per task.

24 divided by 9 simplified

Answers

Answer:

8/3

Step-by-step explanation:

Oh okay i sent a post

3(-6+8)=(3x-6)+(3x8)

Answers

Answer:

= 6

Step-by-step explanation:

= 3 (-6 + 8)

= (3 * -6) + (3 * 8)

= -18 + 24

= 6

Answer:

[tex]x = 12[/tex]

the answer is attached to the picture

hope this helps you.

Brainliest plzz

-2(x+6) - (3x+1) Please help!

Answers

Answer:

[tex]-5x-13[/tex]

Step-by-step explanation:

[tex]-2\left(x+6\right)-\left(3x+1\right)[/tex]

Expand:

[tex]-2x-2\times6-(3x+1)[/tex]

[tex]-2x-12-\left(3x+1\right)[/tex]

Remove brackets and flip the signs in brackets:

[tex]-2x-12-3x-1[/tex]

Group the similar terms together:

[tex]-2x-3x-12-1[/tex]

Add/subtract the terms:

[tex]-5x-13[/tex]

Find the slope and the y-intercept of the following equation y = - x/3 - 4

Answers

Answer:

The slope is -x/3 and the y-intercept is -4.  

Step-by-step explanation:

COMBINING LIKE TERMS: Challenge 7 – 3ab + 2a + 6ab + 5 – 4a + 3a – ab​

Answers

Answer:

Hope this helps;))

Step-by-step explanation:

-3ab+6ab=3ab

2a-4a+3a=1a

7+5=12

12+3ab+1a

Answer:

-2+2ab-a

Step-by-step explanation:

Never combine unlike terms

Ex. Never combine a and ab

By following those rules, you will get -2+2ab-a as your answer.

Answer two questions about Equations A and B:
A.
2x – 1 + 3x = 0
B.
5x – 1 = 0
1) How can we get Equation B from Equation A?
Choose 1 answer:
Add/subtract the same quantity to/from both sides
B
Add/subtract a quantity to/from only one side
Rewrite one side (or both) by combining like terms
Rewrite one side (or both) using the distributive property

Answers

Answer:

Step-by-step explanation:

C

Rewrite one side (or both) by combining like terms which is option(C)

What is equation?

Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal.

2x – 1 + 3x = 0

5x – 1 = 0

To get Equation B from A, we would rewrite one side (or both) by combining like terms

2x – 1 + 3x = 0

5x – 1 = 0

This is Equation B

Learn more about equation here:

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Differentiate y=(sinx)(3x^2) please help please !

Answers

Answer:

6xsinx + 3x²cosx

Step-by-step explanation:

Differentiate using the product rule

Given y = f(x)(g(x) , then

[tex]\frac{dy}{dx}[/tex] = f(x)g'(x) + g(x)f'(x)

Here f(x) = sinx ⇒ f'(x) = cosx

g(x) = 3x² ⇒ g'(x) = 6x

Thus

[tex]\frac{dy}{dx}[/tex] = 6xsinx + 3x²cosx

I needdd help sorry I don’t know what to type

Answers

Answer:

parallel lines has same slope

we have

y = -3/2x+2

comparing with y = mx+c

m=-3/2

so answer is -3/2

Which of these graphs do not represent constant rates of change? Check all that apply

Answers

the first and last graph

Answer:

A and B

Step-by-step explanation:

f(x) = 2x – 5
g(x) = 4x – 1
Find f (g(x)).
help please !!

Answers

Answer:

Hey there!

g(x) is 4x-1

f(g(x) is f(4x-1)

f(4x-1)=2(4x-1)-5

f(4x-1)=8x-2-5

f(4x-1)=8x-7

The answer is 8x-7

Let me know if this helps :)

the product of 25 and the number of students

Answers

Answer:

25n

25*n

Step-by-step explanation:

let n represent the number of students

HELP ME !
A right triangle has legs that measure 8 inches and 15 inches.
A. 5 in.
B. 7 in.
C. 17 in.
D. 23 in.

Answers

Answer:

C. 17

Step-by-step explanation:

I'm assuming you need the hypotenuse so to get that you do

The square root of a^2 + b^2

                            a squared + b squared

So it becomes square root of 8^2 + 15^2

                    =   square root of 64 + 225

                    =   square root of 289

                    =   17

Hope this helps :)

I need help with this

Answers

Answer:

Quadrilateral, parallelogram, rectangle

Step-by-step explanation:

i believe those are the right ones

Angle A equals 30 degrees side a equals 7 and side b equals 12

Answers

Answer:

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

Step-by-step explanation:

Side c = 11° (hope this is the answer u were looking for)
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The north wind coming up off the practice fields outside glazed the windowpanes along the wall with ice. Be creative, she said. I sat in the principals warm office and wrote a hundred sentences, like the ones Id written on the detention hall chalkboard for Mrs. Jaffrey after school: I will not wear my coat to class because someone might mistake me for a bear and shoot me. I will not wear my coat to class because I might sweat so much the class will flood, and somebody might drown. I will not wear my coat to class because I might get so hot, Ill catch fire and burn the whole Junior High down. That kind of thing. It was more than five hundred words. I thought it was pretty creative. Mrs. Jaffrey didnt think so, though. Neither did my old man. Next day, he showed up outside Mrs. Jaffreys class with my essay in his hand. Checked me out of school. Told me to put on my coat. Its in the principals office, I told him Leave it then, he said. It was cold outside. 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