Question

Qual é o resultado de
2x² - 36x = 0?

Answer 1

Resposta:

$2x {}^{2} - 36x = 0 \\ 2x {}^{2} - 36x = 0 \\ 2x \times (x - 18) = 0 \\ 2x \times (x - 18) \div 2 = 0 \div 2 \\ x \times (x - 18) = 0 \div 2 \\ 2x \times (x - 18) \div 2 = 0 \div 2 \\ x \times (x - 18) = 0 \\ 2x \times (x - 18) = 0 \\ x \times (x - 18) = 0 \\ x = 0 \\ x - 18 = 0 \\ x - 18 + 18 = 0 + 18 \\ x = 0 + 18 \\ x - 18 + 18 = 0 +18 \\ x = 18 \\ x = 0 \\ x - 18 = 0 \\ x = 0 \\ x =18 \\ x _{1} = 0.x_{2} = 18 \\ resposta \\ x_{1} = 0. \: x_{2} = 18$