Question

factor 12x - 40 using the gcf; 4 (3x + 10); 2 (6x + 20); 4 (3x - 10); 2 (6x -

Explanation:

Step1: Find GCF of 12 and 40

Factors of 12: 1,2,3,4,6,12
Factors of 40: 1,2,4,5,8,10,20,40
GCF = 4

Step2: Divide each term by GCF

$\frac{12x}{4} = 3x$, $\frac{-40}{4} = -10$

Step3: Factor out the GCF

$4(3x - 10)$

Answer:

C. 4 (3x - 10)