Question

resolva as equações de 2° grau:
x²-5x=-4x²-2x

Answer 1

x² - 5x = -4x² - 2x
x² + 4x² - 5x + 2x = 0
5x² - 3x = 0
x(5x - 3) = 0

x = 0

Ou

5x - 3 = 0
5x = 3
x = 3/5

As raízes são $x =0$ e $x = \frac{3}{5}$

Answer 2

x² - 5x = - 4x² - 2x
x² + 4x² - 5x + 2x = 0
5x² - 3x = 0
x(5x - 3) = 0
x = 0

5x - 3 = 0
5x = 3
x = 3/5

Resp.: x = 0 e x = 3/5