contestada

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

Answer:

2x^2-6x-4

Step-by-step 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

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