To factor the expression x^2 - 7x + 12, we need to find two numbers that multiply to 12 and add to -7. These numbers are -3 and -4.
Therefore, the factors of x^2 - 7x + 12 are (x - 3)(x - 4).
So, the correct answer is B. (x - 3)(x - 4).
factor x^2 - 7x + 12.
A. (x - 3) (x + 4)
B. (x - 3) (x - 4)
C. (x - 6) (x - 2)
D. (x -1) (x-12)
1 answer