MATHEMATICS MIDDLE SCHOOL

The sum of two binomials is 12×^-5x. If one of the binomials is x^-2x, the other binomial is

Answers

Answer 1

Answer:

Answer:

11x² - 3x

Step-by-step explanation:

Here's one way to do it. Write the two polynomials with corresponding powers of x under each other and subtract.

12x² - 5x

-(x² - 2x)

Distribute the -1 and add.

12x² - 5x

-x² + 2x

11x² - 3x

Check:

x² - 2x

+(11x² - 3x)

12x² - 5x

OK.

Related Questions

Combine the like terms to simplify the expression:9 + 3 + 17xy2 + 8y3 + 10x –13xy2 – 9x – 6y3 A. 2y6 + 4x2y2 + 10x + 12 B. 2y3 – 4xy2 – 3x + 12 C. 2y3 + 4xy2 + 10x + 9 D. 2y3 + 4xy2 + x + 12
Write the steps for how to use a number line to multiply a 2-digit number by 20. give an example
PLEASE HELP!!!This is one question but with 3 parts; I answered 2 but I need one more. Part one: Arif and Keisha go to a restaurant. their meal cost 13.75. The sales tax is 5% I got $0.69. Part two: They want to leave a 15% tip based on the bill and tax combined. I got $2.17 Now the part 3 I need help with says Arif ordered a more expensive meal than Keisha after tax and tip are figured he decides he should pay $3.00 more than Keisha. How much should he pay?
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Which expression is equivalent to 3 (5r + 2/3s +3t) +9s? A. 15r11s + 9t B. 15r+ 18s + 9t C. 15r2s 9t D. 15r+29s + 9t

What is the product of 6 times 6 times 6 times 6 times 6 in exponent form

Answers

the answer to your question is 6^5

6 to the 5 power, so it would be 6 as the base and 5 as the exponent here it is in standard form (I think that's what they call it) > $6^(5)$

What is the percentage increase from 9 to 10.25

Answers

113.8(with a repeating 8)%
To find this answer, I divided 10.25 by 9 and got 1.13888(with a repeating 8). To turn that into a percent, I multiplied it by 100 and got 113.8(with a repeating 8)%.

By 113.8(with a repeating 8)% I mean 113.8888888888...%

Answer:

13.8888......

Step-by-step explanation:

https://www.percentagecal.com/answer/what-is-percentage-difference-from-25-to-41#:~:text=Percentage%20Calculator%3A%20What%20is%20the,%3D%2064

Solve the equation for x. 2(2x - 4) = 3(x + 4) a. -4 c. 20 b. 4 d. 6

Answers

Answer:

$\mathrm{C}$

Step-by-step explanation:

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

$4x-8=3x+12$

$4x-3x=12+8$

$1x=20$

$x=20$

Answer:

the correct answer is 20. Option C

Step-by-step explanation:

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

4x-8=3x+12

x=12+8

x=20

PLEASE HELP WITH NUMBER 22 ASAP PLEASE HELP ME

Answers

The length of the hypotenuse of a right triangle is the square root of (one leg squared plus the other leg squared).

So: width^2 + length^2 = diagonal^2, this is the formula. Now you just have to use the numbers which are given. This is based on the Pythagorean theorem.

Subtract and simplify.
(-y2 – 4y - 8) – (-4y2 – 6y + 3)

Answers

Answer:

3y^2 +2y -11

Step-by-step explanation:

(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)

Distribute the minus sign

(-y^2 – 4y - 8) +4y^2 + 6y - 3

Combine like terms

-y^2+4y^2 – 4y + 6y - 3-8

3y^2 +2y -11

Answer:

3y^2+2y-11

Step-by-step explanation:

I am guessing for -y2 and -4y2 you meant exponents; it would still get you the same answer though.

-y^2-4y-8 - (-4y2-6y+3)

1.Distribute; -y^2-4y-8 -1(-4y2*-1-6y*-1+3*-1)

you then get; -y^2+(-4y)+(-8) +4y^2+6y+-3

2.Combine like terms; 3y^2+2y-11

Then you get: 3y^2+2y-11.

Mrs. Harrison used 16 ounces of dark chocolate while baking. She used 2/5 of the chocolate to make some frosting and used the rest to make brownies. How much more chocolate did Mrs. Harrison use in the brownies than in the frosting

Answers

¹⁶/₅ or 3 ¹/₅ or 3.2 ounces.

Further explanation

Given:

Mrs. Harrison used 16 ounces of dark chocolate while baking.
She used ²/₅ of the chocolate to make some frosting.
She used the rest to make brownies.

Question:

How much more chocolate did Mrs. Harrison use in the brownies than in the frosting?

The Process:

From the information above, we made a suitable diagram as follows:

$\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot} = 16 \ ounces$

Hence, one part equal to $(16)/(5) \ ounces$ .

She used $(2)/(5)$ of the chocolate to make some frosting, meaning two of five parts of the chocolate.

$\boxed{\cdot}\boxed{\cdot}$

And she used the rest, that is, $(3)/(5)$ of the chocolate to make brownies, meaning three of five parts of the chocolate.

$\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}$

Finally, let us find out how much more chocolate did Mrs. Harrison use in the brownies than in the frosting. Before that, prepare in the form of a fraction of the part in question.

$\boxed{ \ = (3)/(5) - (2)/(5) \ }$

$\boxed{\boxed{ \ = (1)/(5) \ }}$ or one of five parts of the chocolate.

We declare this fraction into ounces by multiplying it by 16 ounces.

$\boxed{ \ = (1)/(5) * 16 \ ounces \ }$

$\boxed{\boxed{ \ (16)/(5) \ or \ 3(1)/(5) \ or \ 3.2 \ ounces \ }}$

Thus Mrs. Harrison used 3.2 ounces more chocolate in brownies than in the frosting.

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Keywords: Mrs. Harrison, used 16 ounces, dark chocolate, while baking, she used 2/5, to make some frosting, and used the rest to make brownies. How much more chocolate did Mrs. Harrison use in the brownies than in the frosting

1/5 bc 5/5=total. So u would do 5/5-3/5= 2/5. then 3/5-2/5= 1/5

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