Simplify 18 - 2[x + (x - 5)].

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asked Jan 2, 2016 210k views

1 Answer

Andi Droid · Answer 1 · 2016-01-08T02:28:36+0000

First, distribute what's inside the parenthesis, and change all the subtractions to addition of negatives.

18 + -2 (x^2 + - 5x)

Next distribute the -2

18 + -2x^2 + 10x

Then I like to rearrange stuff to put it in standard form.

-2x^2 + 10x + 18

Simplify 18 - 2[x + (x - 5)].

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