Question

w^2+2w-8=0

solve by factoring

Answer 1

What are two numbers that multiply to -8 AND add to 2 ?

Answer 2

-2 and 4

Answer 3

Ao now substtute it dat way... Its a quadratic u no...

Answer 4

w^2+2w-8 = w^2 + 4w - 2w -8 = w(w + 4) - 2(w + 4) = (w - 2) * (w + 4).

That is factoring by grouping.

Answer 5

(w - 2) * (w + 4) = 0
So,
w-2 = 0 or w + 4 = 0

Solve for w @higherlearning

Answer 6

2 and -4

Answer 7

Correct.