Subtract 7x2 + 4x - 9 from 5x2 + 10x - 5. Express the result as a trinomial in descending degree order.

asked Mar 25, 2020 233k views

5 votes

Subtract 7x2 + 4x - 9 from 5x2 + 10x - 5. Express the result as a trinomial in descending

degree order.

by Luca

5.2k points

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1 vote

Answer:

2x^2-6x-4

Explanation:

(7x2 + 4x - 9)

-(5x2 + 10x - 5)

7x^2-5x^2=2x^2

4x-10x=-6x

-9-(-5)=-4

thus, your answer is 2x^2-6x-4

5.4k points

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