Question

Al operar y simplificar 4-4(×-1)(×+2)+4×

Answer 1

4-4(x-1)(x+2)+4x
4-4[x²+2x-x-2]+4x
4-4x²-4x+8+4x
-4x²+12

Simplificando por -4

x²-3

Saludos