How do you subtract $7x^2+4x-9$ from $5x^2+10x-5$ ?

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Answer 1 · 2018-07-27T04:59:35

$-2x^2+6x+4$

Subtract the like terms as described below:

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

Opening the bracket and we get:

$5x^2+10x-5-7x^2-4x+9$

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

$-2x^2+6x+4$

How do you subtract 7x^2+4x-97x^2+4x-9 from 5x^2+10x-55x^2+10x-5?