Adding and Subtracting Polynomials Answers

associative propertyclosure propertycommutative property

associative propertyclosure propertycommutative property

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

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?

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

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

associative propertyclosure propertycommutative property

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

Cory writes the polynomial x7 + 3x5 + 3x + 1. Melissa writes the polynomial x7 + 5x + 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?

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

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

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

x + 20x – 1803x + 203x – 180

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

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

8201,0202,8203,020

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

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