Question

Equação de 2 grau incompleta 2x2 =8x

Answer 1

2x² = 8x
2x² - 8x = 0
2x(x - 4) = 0
2x = 0
  x = 0
ou
x - 4 = 0
x = 4

Answer 2

2x2 =8x

2x2 - 8x = 0

x(2x - 8) = 0

x1 = 0
============================
2x2 - 8 = 0

2x2 = 8 ==> x2 = 4