Question

Indique o conjunto-solução:
3x(4 - 2x) = 7x​

Answer 1

Resposta:

$3x.(4-2x)=7x\\12x - 6x^{2}=7x \\12x - 6x^{2}-7x=0\\5x-6x^{2}=0\\x.(5-6x)=0\\x=0\\5-6x = 0\\x = 0\\x = \frac{5}{6}\\\\x_{1} = 0\\x_{2}= \frac{5}{6}$