Answer:
-7x^3+39x^2+136x
Step-by-step explanation:
= x(x-8) (-7x - 17)
( x - 8 ) ( -7 x - 17) : -7x^2 + 39x+136
= x( -7x^2 + 39x + 136)
= x( -7x^2) + x * 39x * 136
= -7x^3 + 39x^2 + 136x
