Adding and Subtracting Polynomials

Question 1

The sum of two polynomials is 10a2b2 – 8a2b + 6ab2 – 4ab + 2. If one addend is –5a2b2 + 12a2b – 5, what is the other addend?

Revolt · Accepted Answer

A: 15a2b2 – 20a2b + 6ab2 – 4ab + 7

Question 2

Find: (4x2y3 + 2xy2 – 2y) – (–7x2y3 + 6xy2 – 2y)

Revolt · Accepted Answer

: 78593; : -4; : 0

Question 3

Question 3

Revolt · Accepted Answer

-4

Question 4

Question 4

Revolt · Accepted Answer

0

Question 5

The revenue, in dollars, of a company that produces video game systems can be modeled by the expression 5x2 + 2x – 80. The cost, in dollars, of producing the video game systems can be modeled by 5x2 – x + 100, where x is the number of video game systems sold. If profit is the difference between the revenue and the cost, what expression represents the profit?

Revolt · Accepted Answer

D: ✔ 3x – 180

Question 6

8201,020✔ 2,8203,020

Revolt · Accepted Answer

C: ✔ 2,820

Question 7

The revenue, in dollars, of a company that produces video game systems can be modeled by the expression 5x2 + 2x – 80. The cost, in dollars, of producing the video game systems can be modeled by 5x2 – x + 100, where x is the number of video game systems sold. If profit is the difference between the revenue and the cost, what expression represents the profit?

Revolt · Accepted Answer

: 38; : 160; : 40

Question 8

A family needs to build fencing around their rectangular home and square swimming pool, depicted below.

Revolt · Accepted Answer

: 78618; : 160; : 40

Question 9

Question 9

Revolt · Accepted Answer

160

Question 10

Question 10

Revolt · Accepted Answer

40

Adding and Subtracting Polynomials Answers

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