Question

Factor this trinomial: x2−2x−24
Then, select both correct factors below.

Question 4 options:

(x−6)

(x−4)

(x−2)

(x+6)

(x+4)

Answer 1

It’s (x-6)(x+4) so the first one and last one

Answer 2

For this case we must factor the following expression:

$x ^ 2-2x-24$

We must find two numbers that when added together give "-2" and when multiplied by "-24"

These numbers are:

$-6\ and\ +4\\-6 + 4 = -2\\-6 * + 4 = -24$

So:

$x ^ 2-2x-24 = (x-6) (x + 4)$

Answer:

$(x-6) (x + 4)$

Option A and D