Question

Efetue: a) (x+3) (x^2-5x+6), b) (2x+3) (x-2) (4x-1)

Answer 1

a) (x+3) (x^2-5x+6) = $(x+3) (x^2-5x+6) = x^3-5x^2+6x+3x^2-15x+18=x^3-2x^2-9x+18$

b) (2x+3) (x-2) (4x-1) = $(2x+3) (x-2) (4x-1) = 2x^2-4x+3x-6=2x^2-x-6$