Question

Descompuneti in factori:

$x^3-7x-36$

ms :)

Answer 1

$x^{3}-7x-36= \\ =x^{3} -16x+9x-36= \\ =x( x^{2} -16)+9(x-4)= \\= x(x+4)(x-4)+9(x-4)= \\ =(x-4)[x(x+4)+9]$