How do you factor the trinomial $x^2 + 2x - 8$ ?

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Answer 1 · 2016-02-28T11:10:55

$x^2+2x-8=color(blue)((x+4)(x-2))$

$x^2+2x-8$

Find two numbers that when added equal $2$ , and when multiplied equal $-8$ . The numbers $4$ and $-2$ meet the criteria.

Rewrite the trinomial as its factors.

$(x+4)(x-2)$

How do you factor the trinomial x^2 + 2x - 8x^2 + 2x - 8?