Question

Resolva:
A) (x² + 3x)(x + 5)=
B). (x - 2)(x + 3)=

Answer 1

Resposta:

a)

$( {x}^{2} + 3x)(x + 5) = \\ {x}^{3} + 5 {x}^{2} + 3 {x}^{2} + 15x = \\ {x}^{3} + 8 {x}^{2} + 15$

b)

$(x - 2)(x + 3) = \\ {x}^{2} + 3x - 2x - 6 = \\ {x}^{2} + x - 6$