Question

Descompuneti in factori a) (x+2)³- 4(x+2)​

Answer 1

$\displaystyle{ (x+2)^{3} - 4(x+2) = x^{3} + 6x^{2} + 12x + 8 - 4x - 8 }$

$\displaystyle{ = x^{3} + 6x^{2} + 8x }$

$\displaystyle{ = x \cdot (x+4) \cdot (x+2) }$