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Question #6d4f8

1 Answer

Nov 4, 2016

You get $(a - 2) (a + 1)$ $(a-2)(a+1)$

Explanation:

We need two numbers to multiply to -2, and to add up to -1. Through trial and error, we can find out that these two numbers are -2 and 1.

$- 2 \times 1 = - 2$ $-2xx1=-2$
$- 2 + 1 = - 1$ $-2+1=-1$

Since $a$ $a$ does not have a coefficient, in the answer it will just remain as $a$ $a$ .

Using -2 and 1 we get:

$(a - 2) (a + 1)$ $(a-2)(a+1)$

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