x2 + 6x + 8 = (x + 4)(x + 2)
(x - 4)(x - 2)
X - 4
x3 + x2 - 6x + 4 = (x - 1)(x2 + 2x - 4)
x2 + 6x + 8 =(x + 2)(x +4)
4
4(x2 - 6x + 13)
x - 4 APEX
(x - 2)(x - 4)
(X + 2)(X + 4) Factored
6x+4 factor: 2(3x+2)
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)