PLZZZ HELP I WILL GIVE BRAINLIEST

Solve the equation
(x-3)^3-( x - 1 )^3 + 7x^2 = 7(3x - 4 )

Answers

Answer 1
remove the parentheses
x^3-9x^2+27x-27-x^3+3x^2-3x+1+7x^2=21x-28

x^2+24x-26=21x-28
x^2+24x-26-21x+28=0
x^2+3x+2=0
factor the expression
(x+2)(x+1)=0
sooo x1=-2 x2=-1
Answer 2

Answer:

(x - 3)³ - (x - 1)³ + 7x² = 7(3x - 4)

=> x³ - 9x² + 27x - 27 - (x³ - 3x² + 3x - 1) + 7x² - 21x + 28 = 0

<=> -2x² + 6x + 1 + 3x² - 3x + 1 = 0

<=> x² + 3x + 2 = 0

<=> (x + 1)(x + 2) = 0

<=> x + 1 = 0 or x + 2 = 0

<=> x = -1 or x = -2


Related Questions

simplify 3 3^square root of 16

Answers

Answer:

2.5198421 is yhe answer of 3^√16

On a scale drawing with a scale of 1 inch:5 feet, a tree is 5 inches tall. How tall is the actual tree?

Answers

Answer: 25

Step-by-step explanation:

If 1 inch equal to 5 feet in this equation than. 5 inches=25 because 5 inches and each inch is 5 feet so 5x5=25

hope this helps

can someone please help me with these 2 problems?

Answers

Answer:

1) 121 students

2) $330

Step-by-step explanation:

1) 44 percent of 275 is 0.44 * 275 = 121 students

2) 20 percent of 275 is 0.2 * 275 = 55. 275 + 55 = $330

On a bus, 2 adults can ride for the same price as 3 children. If 1 adult ticket costs $48, what is the price of a child's ticket?

Answers

16 dollars because 48/3=16

Answer:

32

Step-by-step explanation:

2 x $48 = $96

$96 ÷ 3 = $32

Look at this view so cool right?

Answers

Answer:

ahhhh so prettyyyyy

Step-by-step explanation:

PLSS HELP i will give 40 points

Answers

The answer is x + 3y - 9. The third option is correct.

[tex]2x + 3y - x - (8 + 1)[/tex]

[tex]2 x - x + 3y -9[/tex]

[tex]x + 3y - 9[/tex]

The expression (x^13)(x^6)^3 is equivalent to x^p what is the value of p?

Answers

Answer:

Step-by-step explanation:

If x can be any number, then p = 22.

If x = 0 or 1, then p can be any number.

Brooke uses 8.6 pints of blue paint and white paint to paint her bedroom walls. 3/5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?

Answers

Answer:

3 11/25 pints of white paint

Step-by-step explanation:

8 6/10 is the same as 43/5

if 3/5 of the total pints are blue then 2/5 are white

so multiply 43/5 x 2/5 to get 86/25 which equals 3 11/25

Help me please! I need to pass :(

Answers

Answer:

The area is 56.25 [tex]mm^{2}[/tex]

Step-by-step explanation:

Hope this helps!! Please mark brainliest.

A recipe for fizzy juice says, “Mix 5 cups of cranberry juice with 2 cups of soda water.” The ratio of cranberry juice to soda water is 5:2. How many cups of cranberry do we need for 8 cups of soda?

Answers

Answer:

you'll need 20 cups of cranberry

What does Luffy from One Piece like better?
A). Meat
B). Attacko
C). Sleep
D). Yell
E). Luffy is uncapable of thinking which one is better

Answers

eㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

watch wonder egg priority & sk8 Infinity

on 4anime dot to

Answer:

Meat

Step-by-step explanation:

The only thing he can practically think about is Meat, Pirate King, and his pirate crew.

Help again :') please

Answers

The answer is a right triangle

Answer:

Credits to the person above they are correct.

Step-by-step explanation:

if you walk 1.5 hours at 3mph, how fast shoukd you run in the next 0.5 hours to have the average speed of 4mph

Answers

Answer:

avg speed= total distance / total time

total time= 0.5+1.5= 2 h

d1= v1 t1=1.5×3=4.5

d2=v2t2

v2=x...let

d2=0.5x

atq....4.5+0.5x/2= 4

4.5+0.5x=8

x= v2=7mph

Answer:

7 mph

Step-by-step explanation:

The area of a circle is 144π in². What is the circumference, in inches? Express your answer in terms of π

Answers

Answer:

42.54 inches

Step-by-step explanation:

Determine if the table is linear or non linear
-9,-7
-6,-7
-1,2
14,16

Answers

Answer:

I plot the points to a graph but I don't have access to a 14 I only have a 10 grid graph but I was able to plot the other points this is wht I got

Step-by-step explanation:

let me know if u can't see it..... I would say it's nonlinear

What is the measure of y?
3
27
N
y = [?]
Enter the number that belongs in the green box.

Answers

Answer: 9

Step-by-step explanation:

In a right triangle, the shortest leg is 15 centimeters, and one angle equals 30 degrees, what is the length of the
hypotenuse?

Answers

the hypotenuse is 30 cm
ALSO UR PFP IS SO FUNNY-

Answer:

30

Step-by-step explanation:

This is a 30 60 90 triangle. Since it tells us it a right triangle (which means it has a 90 degree angle). Also it tells us that there is a 30 degree. Using the triangle interior theorem, the third angle is a 60 degree

angle

The longest side or hypotenuse is twice the length of the shortest side. So the hypotunes is 30.

find the area of this circle and I'll give you brainliest!!​

Answers

Answer:

572.555

Step-by-step explanation:

A=Πr²

A=3.14×13.5²

A=572.555

find the total surface area of cuboids of length 12cm breadth 10cm and height 5cm.​

Answers

Answer:

length =12 cm breadth =10 cm height =5 cm

TSA=2(lb+bh+lh)=2[12×10+10×5+5×12]

TSA=2[120+50+60]=2×230

[TSA=460cm 2 ]

Step-by-step explanation:

Hope it is helpful....

Step-by-step explanation:

length=12cm

breadth =10cm

height =5cm

we know that,

T.S.A of cuboid= 2(lb+lh+bh)

=2(12*10+12*5+10*5)

=2* 230

=460.

Hope it will help

What percent is 11 out of 20? ​

Answers

Answer:

55%

Step-by-step explanation:

Make 11 out of 20 as a fraction:

[tex]\frac{11}{20}[/tex]

11 ÷ 20 is 0.55.

To make a decimal a percent, you multiply it by 100. So,

0.55 x 100 = 55

                  = 55%

So, the answer is 55%

The requried,  percentage of 11 out of 20 is 55%.

To find the percentage of 11 out of 20, you can use the following formula:

Percentage = (Part / Whole) * 100

In this case, the "part" is 11 and the "whole" is 20. Plug these values into the formula:

Percentage = (11 / 20) * 100

Calculate the value:

Percentage = 0.55 * 100

Percentage = 55%

So, 11 is 55% of 20.

Learn more about percentages here:

https://brainly.com/question/13162258

#SPJ6

PLEASE HELP I NEED THIS ASAP PLEASE PLEASE!​

Answers

Answer:

C. 2.7 repeating

Step-by-step explanation:

25/9 = 2.777777777777777

The perimeter of a triangle is 122 centimeters. If two sides are equally long and the third side is 8 centimeters longer than the others, find the lengths of the three sides.

Answers

Answer:

2 sides are 38cm long

The third is 46cm long

Step-by-step explanation:

We can use the following equation to solve

[tex]122 =x + x + (x + 8)[/tex]

Reduce

[tex]122 = 3x + 8[/tex]

114÷3 = x

x = 38

We then add 38 and 8 because the 3rd side is 8cm longer

Use the Distributive Property to rewrite this algebraic expression.

6(11 + x)

Answers

the answer would be 66+6x

A rental car company charges $38.38 per day to rent a car and $0.14 for every mile driven. Camden wants to rent a car, knowing that: He plans to drive 350 miles. He has at most $270 to spend. Which inequality can be used to determine xx, the maximum number of days Camden can afford to rent for while staying within his budget?

Answers

Answer:

5.75 days

Step-by-step explanation:

Given data

let the number of days be x and the number and the number of miles be y

so that the cost of the rental will be

c= 38.38x+ 0.14y---------1

we are told that the amount at hand is $270

hence

270=38.38x+ 0.14*(350)

solve for x

270= 38.38x+49

270-49= 38.38x

221= 38.38x

divide both sides by 38.38

x= 221/38.38

x= 5.75 days

Hence the  number of days is 5.75 days

Find the area of a square with side = 6 cm.

Answers

Answer:

isn't it 36cm^2

Step-by-step explanation:

sqaure is even so i think you do 6×6

Answer:

36cm

Step-by-step explanation:

Area of a square= Side^2

= 6^2

= 36

please i’ll give you brainliest and thanks !

Answers

Answer:

1. 40

2. 124

3. 160

Step-by-step explanation:

1. 12x - 20 = 60 - 20 = 40

2. 12x - 20 = 144 - 20 = 124

3. 12x - 20 = 180 - 20 = 160

George weeded 1/4 of the garden, and summer weeded, some too. When they were finished, 2/5 of the garden still needed to be weeded. What fraction of the garden did summer weed?

Answers

Answer: [tex]\dfrac{7}{20}^{th}\ \text{Part}[/tex]

Step-by-step explanation:

Given

George weeded [tex]\frac{1}{4}[/tex] of the garden

When they both finish, [tex]\dfrac{2}{5}[/tex] of the garden still needed to be weeded

Suppose Summer weeded  [tex]\dfrac{1}{x}[/tex] part

[tex]\Rightarrow \dfrac{1}{4}+\dfrac{1}{x}=1-\dfrac{2}{5}\\\Rightarrow \dfrac{1}{4}+\dfrac{1}{x}=\dfrac{3}{5}\\\Rightarrow \dfrac{1}{x}=\dfrac{3}{5}-\dfrac{1}{4}\\\Rightarrow \dfrac{1}{x}=\dfrac{12-5}{20}=\dfrac{7}{20}[/tex]

So, summer weeded [tex]\dfrac{7}{20}\ ^{th}[/tex] part of the garden

I've been stuck on this for a hour, Can someone help pweasee ....oh and that's not the answer if i made that answer alittle bit darker from the others

Answers

C) 12pi

Circumference is pi x diameter or 2 x pi x radius

4 If 2 sin X = 1 (where X is the measure of an acute angle), then X =
(a) 45°
(b) 90°
(c) 30°
(d) 60°

Answers

X = arcsin (1/2) = 30 degrees

Pls help will mark brainliest

Answers

Answer:

obtuse

Step-by-step explanation:

22^2+32^2<55^2

if the longest side is greater than its obtuse

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