Question

Factor out the common binomial in the expression.
12(x-5) + 7x(x-5)

Answer 1

(x-5)(12+7x)

Answer 2

you can view this as follows:
Factor out the common factor:
12x+7x
you have x as a common factor, thus you have
x(12+7)
does this help?
Your expression instead of x has (x-5)

Answer 3

in this case @mashe your saying factor out means "expand"?

Answer 4

I don't understand your comment JayDS, but I hope it helps jeletta :-)