Adding and Subtracting Polynomials

Question 1

Adding which terms to 3x2y would result in a monomial? Check all that apply.3xy–12x2y2x2y27xy2–10x24x2y3x3

Question 2

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 3

associative propertyclosure propertycommutative property

Revolt · Accepted Answer

closure property

Question 4

associative propertyclosure propertycommutative property

Revolt · Accepted Answer

commutative property

Question 5

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 6

8201,0202,8203,020

Revolt · Accepted Answer

2,820

Question 7

The total amount of fencing they need can be written as [___]x + 10.

Revolt · Accepted Answer

⇒ 38: 78618; 160; 40; 38

Question 8

combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite

Revolt · Accepted Answer

wrote as addition of the additive inverse; wrote terms as addition of opposite; grouped like terms; combined like terms

Question 9

combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite

Revolt · Accepted Answer

wrote terms as addition of opposite

Question 10

combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite

Revolt · Accepted Answer

grouped like terms

Adding and Subtracting Polynomials Answers

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