Question

Resolva a expressão
a) (x+1).(x+2)-2(x+3)² +(x+2).(x+3)

Answer 1

Resposta:

(x+1).(x+2)-2(x+3)²+(x+2).(x+3)

2.(x+2)-2(x+3)²+(x+2).(x+3)

2.3-2(x+3)²+(x+2).(x+3)

6-2(x+3)²+(x+2).(x+3)

4(x+3)²+(x+2).(x+3)

10x+(x+2).(x+3)

11x+(2).(x+3)

13x.(x+3)

17x²