Question

If x – 3 is a factor of x2 + x – 12, then the other factor is

Answer 1

x + 4

Explanation:

You have to factor x2 +x - 12 using sum product number pair or the box method.

spnp would be

s p n p

1 -12 -3, 4

Therefore the factored form would be:

(x - 3)(x + 4)

making the other factor

x + 4