Question

Calcule a raiz da equação 3x = 3x²

Answer 1

$3x = 3 {x}^{2} \\ \\ \frac{3x}{3x} = \frac{3 {x}^{2} }{3x} \\ \\ 1 = x$

Answer 2

Oie, Td Bom?!

$3x = 3x {}^{2} \\ x = x {}^{2} \\ x - x {}^{2} = 0 \\ x \: . \: (1 - x) = 0$

$x = 0 \\ 1 - x = 0⟶x = 1$

S = $\left \{ x_{1} = 0 \: , \: x_{2} = 1 \right \}$

Att. Makaveli1996