Answer:
(x-2)(x+4)
Step-by-step explanation:
x² + 2x - 8 = x² + 2x +1 - 9 = x² + x +x+1 - 9 = x(x+1) +(x+1) - 9
= [tex](x+1)^{2}[/tex] - [tex]3^{2}[/tex]
= (x+1-3)(x+1+3)
= (x-2)(x+4)
