Question

Calcule os produtos
A) (X+1). (X-2). (X+3)=
B) (X-2). (X+4). (X-1)=

Answer 1

Explicação passo-a-passo:

A)

(X+1). (X-2). (X+3)=(x²-2x+x-2).(x+3)

(x+1).(x-2).(x+3)= (x²-x-2).(x+3)

(x+1).(x-2).(x+3)=(x³+3x²-x²-3x-2x-6)

(x+1).(x-2).(x+3)= x³+2x²-5x-6

B)

(X-2). (X+4). (X-1)=(x²+4x-2x-8).(x-1)

(x-2).(x+4).(x-1)= (x²+2x-8).(x-1)

(x-2).(x+4).(x-1)=(x³-x²+2x²-2x-8x+8)

(x-2).(x-4).(x-1)=x³+x²-10x+8