Question

se x=2,y=2.x e z=2.y , qual o valor de x+y+z?

Answer 1

x = x

y = 2x

z = 2y => z = 2×(2x) => z = 4x

[x + y - z]^5

[x + 2x - 4x]^5

[3x - 4x]^5

[- x]^5 => - (x)^5

Resposta: - (x)^5