Question

When completely factored x²-x-12 is equivalent to which of the following

A. (x+4)(x+3)
B. (x-12)(x+1)
C. (x-6)(x+2)
D. (x-4)(x+3)​

Answer 1

`→{x}^(2) - x - 12 \\ = {x}^(2) - 4x + 3x - 12 \\ = x(x - 4) + 3(x - 4) \\ = \boxed{ (x - 4)(x + 3)}✓`

• D. (x - 4)(x + 3) is the right answer.