Question

Resolva a raiz real de: x(x+2)=4x

Answer 1

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

Answer 2

Explicação passo-a-passo:

x(x + 2) = 4x

x² + 2x = 4x

x² + 2x - 4x = 0

x² - 2x = 0

x(x - 2) = 0

•x' = 0

x - 2 = 0

•x" = 2

Duas raízes reais

S = {0 ; 2}