Question

2 - Escreva as expressões algébricas na forma mais reduzida.
A) (x – 4)² – (x + 1)² + (x – 2) (x + 2)
B) (x + 4)² – (x – 1)² + (x – 3) (x + 3)
C) (2x + y)² – (2y + x)² + (x – y)(x + y)

Answer 1

Resposta:

-4x+1x -2x-2x

-5x=4x

x=4+5

x=9