What is the product of 2x - 5 and 3x2 + 5x - 7? Write your answer in standard form.
(a) Show your work.
(b) is the product of 2x - 5 and 3x2 + 5x - 7equal to the product of 5x - 2 and 3x2 + 5x - 7? Explain your
answer.

Answers

Answer 1

Answer:

a) 6x³ − 5x² − 39x + 35

b) no

Step-by-step explanation:

(2x − 5) (3x² + 5x − 7)

Distribute:

3x² (2x − 5) + 5x (2x − 5) − 7 (2x − 5)

Distribute again:

6x³ − 15x² + 10x² − 25x − 14x + 35

Combine like terms:

6x³ − 5x² − 39x + 35

5x − 2 is the opposite of 2x − 5, so you would get the negative of the answer from part (a).


Related Questions

Dos veces la edad de Mary más 7 es igual a 33. ¿Cuál es la
edad de Mary?

Answers

Answer:

La edad de Mary es:

13 años

Step-by-step explanation:

Planteamiento:

2m + 7 = 33

m = edad de Mary

Desarrollo:

2m = 33 - 7

2m = 26

m = 26/2

m = 13

Comprobación:

2*13 + 7 = 33

26 + 7 = 33

If an object travels for 10 seconds at a velocity of 50 feet per second, how far did it travel?

Answers

Answer:

500

Step-by-step explanation:

50x10 = 500

50 feet per second so we multiply 50 (the speed per second) by 10 (the time given). You can also use a formula like this:

S x T

S= Speed

T= Time

How do you determine a closer approximation for the square root of 12

Answers

Answer:

look at it

Step-by-step explanation:

(x + 2)2 + (y - 3)2 = 4

Answers

Answer: x=3

Step by Step:
(x+2)2+(y-3)2=4
2x+4+(0-3)x2=4
2x+4-3x2=4
2x+4-6=0
2x=6
x=3

-1/8 x 5 x 2/3
I really need help I don't understand!

Answers

Answer:

I think answer will be -10.

Step-by-step explanation:

when u multiply -1/8*5/1=-5

-1/8*5

-1/8*40/8= 40/8=-5

2/3*5

2/3*-15/3= 30/3=- 10

I think answer will be -10

if it is wrong i am really sorry

Bob is hiking down a 12-mile country trail. He could hike at 3 mph for the first two hours and then go the rest of the way at 5 mph or he could just go the whole way at 4 mph. How long would each of these options take? Which option is the faster?

Answers

Answer:

The first option will take a total of 3.2 hours while the second option will take just 3 hours

This shows that the second option is faster

Step-by-step explanation:

Here, we want to compare two hiking options and see the one which is faster.

At any point in time;

Distance = speed * time

In the first option, he could hike at 3 mph for two hours.

Total distance covered would be 3 * 2 = 6 miles

Distance left = 12 miles - 6 miles = 6 miles

Time taken to hike 6 miles at 5 mph will be ; 6/5 = 1.2 hours

Total time for the first type hiking = 1.2 hours + 2 hours = 3.2 hours

For the second option;

Time = distance/speed = 12 miles/4 mph = 3 hours

We can see that the second option is faster

Here, we are required to determine how long each of the options take and which of the 2 options is faster .

Therefore;

Therefore;Option 1: 3.2hours

Therefore;Option 1: 3.2hoursOption 2: 3hours.

Therefore;Option 1: 3.2hoursOption 2: 3hours.Ultimately, since option 2 takes 3hours and option 1 takes 3.2hours to hike down the distance respectively, Option 2 is faster.

Total hiking distance = 12 miles

For first option;

He could hike at 3 mph for the first two hours and then go the rest of the way at 5 mph. The statement above suggests that after the first 2 hours, 6 miles will have been covered and the remaining 6 miles can be covered at 5mph in (6/5)hours = 1.2hours.Therefore, the total time taken using this option is;(2 + 1.2) hours = 3.2hours.

For second option;

He could go the whole way at 4mph.At this pace, he is able to travel the whole 12mile hiking distance in (12/4)hours.Therefore, the total time taken using this option is; 3hours.

Therefore;

Option 1: 3.2hoursOption 2: 3hours.

Ultimately, since option 2 takes 3hours and option 1 takes 3.2hours to hike down the distance respectively, Option 2 is faster.

Read more:

https://brainly.com/question/24392595

5^x + 5^x+1= 150
Find x
Help me pls i need soon
Tksss

Answers

Answer:

[tex]x=2[/tex]

Step-by-step explanation:

So we have the equation:

[tex]5^x+5^{x+1}=150[/tex]

First, separate the second term:

[tex]5^x+(5\cdot5^x)=150[/tex]

Let u equal 5ˣ. So:

[tex]u+5u=150[/tex]

Combine like terms:

[tex]6u=150[/tex]

Divide both sides by 6:

[tex]u=25[/tex]

Substitute back u:

[tex]5^x=25[/tex]

Take the base 5 logarithm of both sides:

[tex]\log_5(5^x)=\log_5(25)[/tex]

The left cancels:

[tex]x=\log_5(25)[/tex]

Evaluate the right:

[tex]x=2[/tex]

So, our answer is 2.

And we're done!

Using one or more of your senses to gather information is called O Inferrence O Prediction O Observation O Hypothesis​

Answers

The 3rd option Observation

Clara says that if you square the number 4 and then divide the result by​ 2, you end up with 4. Is Clara​ correct? Explain. Please help.

Answers

Answer:

She is incorrect

Step-by-step explanation:

If you square 4 you get 16 and divide 16 and 2 you get 8 so shes wrong.

Answer: Clara is incorrect

Step-by-step explanation:

The square root of 4 is 2

2 ÷ 2 = 1

You end up with 1 not 4, therefore, Clara is wrong.

Edit: Look at the other answer, I sadly made a mistake thinking the question said square root but it said square I apologize .

Solve for x : x/8 = 8
Quickly !

Answers

The answer is [tex]x=64[/tex]

The first and last step is to multiply both sides by 8

[tex](\frac{x}{8} )(8)=8*8[/tex]

Multiplying [tex]\frac{x}{8}[/tex] by [tex]8[/tex] makes x by itself and 8*8 is 64

[tex]x=64[/tex]

help‼️✌⛓✌

also please try to answer as soon as possible​

Answers

Answer:

do this then this then that and your done :D

Step-by-step explanation:

hope this helps :))

For the pair of functions, find (f • g)(x) and (gof)(x).
f(x) = -2x2 g(x) = x + 4

A. (g)(x) = -283 - 8x?: (gof)(x) = -2x3 - 8x2

B. (f 9)(x) = -2x2 – 16x - 32; (gof)(x) = -2x2 + 4

C. (og)(x) = -2x2 + 4; (g - f)(x) = -2x2 – 16x - 32

D. (fog)(x) = -2x2 – 32; (g - )(x) = -2x2 + 4

Answers

d is correct answer i believe.

Find the x-intercept and y-intercept of the liné.
- 6x + 5y = 21

Answers

Answer:

x=-3.5 or -7/2 (same thing)

y=21/5

Step-by-step explanation:

x intercept is when y=0

y intercept is when x=0

so

x intercept is

-6x=21

x=21/-6

x=-3.5

y intercept is

5y=21

y=21/5

12 divided by 5/6 (pretty easy but im lazy)<3

Answers

Answer:

14.4

Step-by-step explanation:

Hope this helps you :)

Answer:

72/5 = 14.4

Step-by-step explanation:

87 times 422 divided by 4

Answers

Answer:

9178.5

Step-by-step explanation:

Follow PemDas

From Left to Right, you multiply 87 x 422, which is 36,714

Then, thake that number and divide it by 4, giving you 9,178.5

write the domain and the range of the function as an inequality, using set notation, and using interval notation. also describe the end behavior of the function

the graph of the quadratic function f(x) = -x^2 is shown

Answers

When the domain of the function is continuous, a different approach may well be required, although even here we note that in practice, optimization problems are usually solved using a computer, so that in the final analysis the solutions are represented by strings of binary digits (bits).

evaluate 207.3×0.04​

Answers

Let's first just do the multiplication and ignore the decimal points.

2073 x 4 = 8292.

Now there are 3 decimal points we need to consider. So, that gives us an answer of 8.292

:)

The answer is 8.292 I hope this is helpful

What is the value of m in the figure? In this diagram ABD~BCD

Answers

Answer:

D.  √136

Step-by-step explanation:

see attached sketch

Answer:

sqrt 136

Step-by-step explanation:

just took the a pe x

Find the distance between the points (-4, 6) and (3, -7)

Answers

Answer:

the distance between (-6,4) and (3,-8) is 15 units

Which shows a difference of squares?

Answers

We need a picture to answer it

Answer:

the answer is C on egd2020

Step-by-step explanation:

god bless:}

11h - (2h-1) = 118
what is h?

Answers

Answer:

h =13

Step-by-step explanation:

[tex]11h - (2h-1) = 118\\\\\mathrm{Expand\:}11h-\left(2h-1\right):\quad 9h+1\\9h+1=118\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\9h+1-1=118-1\\\\Simplify\\9h=117\\\\\mathrm{Divide\:both\:sides\:by\:}9\\\frac{9h}{9}=\frac{117}{9}\\\\Simplify\\h =13[/tex]

Answer:

H=13

Step-by-step explanation:

First, remove the individual terms from parenthesis. Be careful to handle the signs of each individual term correctly:

to solve for  h

while keeping the equation balanced:

9 h 9 = 117 9

9 h 9 = 13

Find the missing exponent.

Answers

Answer: what missing exponent?

Step-by-step explanation:

(-1,2), (-1,-5) can you solve this for me

Answers

Answer:

Use FOIL I helped with what I could I don't fully understand the problem but I'm pretty sure FOIL needs to be used to solve.

the slope would be x=-1 and it would be vertical

A gym employee is paid monthly. After working for three months, he had earned $4,500. To
determine how much money he will make over a six-month period, he created the table below.

Write an equation to represent the constant of proportionality

Answers

Answer:

$9000

Step-by-step explanation:

A gym employee has earned in 3 months =$4500

Then his monthly salary =$4500/3 =$1500

After six months he will earn = 6 × his monthly salary

= 6×$1500=$9000

Solve the quadratic equation for x. What is one of the roots?

2x2 + 9x − 5 = 0
A) −
1
2
B) −
1
5
Eliminate
C)
1
2
D)
1
5

Answers

Answer:

this is the answer to your question

Write the algebraic expression:
Two times a number plus two

Answers

2x+2 would be the expression
2n+2

I used the letter n for number, but you can use whatever letter you choose.

What are the two equations to set up to solve the equation |2x−3|=11 ?

2x+3=11 and 2x+3=−11

−2x−3=11 and 2x−3=−11

2x−3=11 and 2x−3=−11

2x+3=11 and 2x−3=−11

Answers

Answer:

youre answer is c

i dont know how else to explain other than i took the test with the same question

-kb

The required equations are 2x − 3=11 and 2x − 3=−11. Option C is correct.

Given that,
To determine what are the two equations to set up to solve the equation |2x−3|=11.

What is the equation?

The equation is the relationship between variables and is represented as y =ax +b is an example of a polynomial equation.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
The given equation,
| 2x − 3| = 11
2x - 3 = ± 11
Taking (+)
2x - 3 = 11   - - - - - - - (1)
Taking (-)
2x - 3 = -11  - - - - - - - - (2)

Thus, the required equation are 2x−3=11 and 2x−3=−11. Option C is correct.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ2

An angle that is less than 180 degrees is acute. Always Sometimes Never

Answers

Answer:

Sometimes

Step-by-step explanation:

An acute angle is an angle that measures less than 90°

So, an angle that is less than 180° is sometimes acute.

Answer:

sometimes

Step-by-step explanation:

i don't get it (solve)

Answers

a = 60
2 x 60 = 120
2 x 60 = 120
60 + 60 = 120
It adds up to 360

Can anyone help me please??

Answers

Answer:

I believe the answer is B 0.6

I hope this helps :)

Answer:

0.6

Step-by-step explanation: Since its  6, the probability should be 0.6

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