factor each trinomial
x^2 + 9x + 14
x^2 - 4x - 32
x^2 + 5x - 14
8x^2 - 32x - 18
6x^2 + 22x + 20
3x^2 + 6x - 72
x^2 + 9x + 14 = (x + 2)(x + 7)
x^2 - 4x - 32 = (x - 8)(x + 4)
x^2 + 5x - 14 = (x + 7)(x - 2)
8x^2 - 32x - 18 = 2(4x^2 - 16x - 9) = 2(4x + 1)(x - 9)
6x^2 + 22x + 20 = 2(3x^2 + 11x + 10) = 2(3x + 2)(x + 5)
3x^2 + 6x - 72 = 3(x^2 + 2x - 24) = 3(x + 6)(x - 4)