Question

solve the quadratic equation x²=4x

Answer 1

x^2 - 4x = 0
x(x-4) = 0
Therefore,
x = 0 or (x-4)=0
Therefore,
x = 0 or x = 4

Answer 2

solution

x²=4x

⇒ x²-4x=0

⇒ x(x-4)=0

⇒ x=0 or x-4=0

⇒ x=0 or x=4