Adding and Subtracting Polynomials

Question 1

What is the sum of the given polynomials in standard form?(x2 – 3x) + (–2x2 + 5x – 3)

Revolt · Accepted Answer

–x2 + 2x – 3

Question 2

[___]x2y3 + [___]xy2 + [___]y

Revolt · Accepted Answer

-4

Question 3

[___]x2y3 + [___]xy2 + [___]y

Revolt · Accepted Answer

0

Question 4

associative propertyclosure propertycommutative property

Revolt · Accepted Answer

commutative property; x2 + 2x = 2x + x2: commutative property; (3z4 + 2z3) – (2z4 + z3) = z4 + z3: closure property; (2x2 + 7x) + (2y2 + 6y) = (2y2 + 6y) + (2x2 + 7x): commutative property

Question 5

associative propertyclosure propertycommutative property

Revolt · Accepted Answer

closure property

Question 6

associative propertyclosure propertycommutative property

Revolt · Accepted Answer

commutative property

Question 7

x + 20x – 1803x + 203x – 180

Revolt · Accepted Answer

3x – 180; Profit can be modeled by the polynomial expression .: 3x – 180; If 1,000 video game systems are sold, the company’s profit is $ .: 2,820

Question 8

8201,0202,8203,020

Revolt · Accepted Answer

2,820

Question 9

Place the correct coefficients in the difference.

Revolt · Accepted Answer

160; 40

Question 10

The family needs [___] yards of fencing for their home.

Revolt · Accepted Answer

160

Adding and Subtracting Polynomials Answers

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