Question

Factor the expression x2 − 4x − 12.

Answer 1

ANSWERS:

Answer 2

the general rule to use here is to look at the last term in this case (12) and find two numbers that will add or substract to 4 :)

Answer 3

x^2 - 4x - 12 = 0
(x - 6)(x + 2) = 0
So it's the second option.

Answer 4

yes :) 6-4 equals your middle term and they both multiply to 12

Answer 5

You guys are amazing, thanks so much !

Answer 6

No problem!