how would i factor

9x^2-36

x^2-11x+24.

which ones are

Quad Equations

factor by grouping

product sum

(x-12)(x-2)

9(x-2)(x+12)

(x-4)(x+4)

9x^2-36

x^2-11x+24.

which ones are

Quad Equations

factor by grouping

product sum

(x-12)(x-2)

9(x-2)(x+12)

(x-4)(x+4)

## Comments

The correct answer was 9(x-2) (x+2).

Or the best way 9(x^2-4) = 9(x-2)(x+2).

My apologies that in my haste I didn't COMPLETELY factor the expression.