Question

x2+x-72 middle term factor

Answer 1

x2 + x - 72 =0
= x2 -8x +9x - 72 =0
= x(x-8) +9(x-8) =0
= (x+9)(x-8) = 0
= x= -9 or 8 .

Answer 2

Answer:

x2 + x_72

9×-8=-72

9-8=1

(x+9) (×-8)

ans