Question

determine as raízes das seguintes equações: C) x²​ = 4x​

Answer 1

Vamos lá.

x²​ = 4x​

x²​ - 4x​ = 0

x*(x - 4) = 0

x1 = 0

x2 = 4

Answer 2

$\large\sf{} {x}^{2} = 4x \\ \large\sf{} {x}^{2} - 4x = 0 \\ \large\sf{}x \times \left(x - 4\right) = 0 \\ \large\sf{}x = 0 \\ \large\sf{}x - 4 = 0 \\ \\ \large\sf{}x = 0 \\ \large\sf{}x = 4 \\ \\ \large\sf{} x_{1} = 0 \\ \large\sf{} x_{2} = 4 \\ \\ \\ {\large\boxed{\boxed{  { \large \sf x_{1} = 0 }}}} \\ {\large\boxed{\boxed{  { \large \sf x_{2} = 4}}}}$

${\large\boxed{\boxed{  { \large \sf Bons~Estudos }}}}$