Question

22. One factor of x² + 2x - 8 is

Answer 1

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

                 = $(x+1)^{2}$ - $3^{2}$

                 = (x+1-3)(x+1+3)

                 = (x-2)(x+4)