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zaharov [31]
3 years ago
15

Subtract 7x^2+4x-9 from 5x^2+10x-5. Express the result as a trinomial in descending degree order.

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
5 0
After subtracting your answer should be -2x^2+6x+4
victus00 [196]3 years ago
3 0
So it's saying to 
(5x^2 + 10x - 5) - (7x^2 + 4x - 9)

Collect the like terms
and regroup

(5x^2 - 7x^2) + (10x - 4x) + ( -5 + 9)

Simplify

-2x^2 + 6x + 4

Hope this helps :)
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Answer:

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Step-by-step explanation:

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see the attached figure to better understand the problem

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