Answer:
x^2 + 6x + 8
Step-by-step explanation:
(a1 + b1)(a2+b2)
a1(a2) + [a1(b2)+b1(a2)] + b1(b2)
x(x) + [x(4) + 2(x)] + 2(4)
x^2 + [4x + 2x] + 8
(x-4)(x+2)
(x)(x) + (x)(2) + (-4)(x) + (-4)(2)
x2 + 2x -4x - 8
x2 - 2x - 8
