Question

Sendo:

A= x-3 C= x+1
B= x-2 D= x+4

Calcule:

a) AB + C c) BD + C

b) A + CD d) ABC

Answer 1

Bom, vamos ver:

a) AB + C = (x-3)(x-2) + x+1

x²-2x-3x+6+x+1
x²-4x+7

b) A + CD = x-3 + (x+1)(x+4)
x-3 + x²+4x+x+4
x²+5x+1

c) BD + C = (x-2)(x+4) + x+1
x²+4x-2x-8+x+1
x²+3x-7

d) ABC = (x-3)(x-2)(x+1)
x²-2x-3x+6(x+1)
(x²-5x+6)(x+1)
x³+x²-5x²-5x+6x+6
x³-4x²+x+6

Espero ter ajudado!