Question

equação do 2 grau 12x sobre 2 _7x+1=0​

Answer 1

Explicação passo-a-passo:

$x=\frac{-\left(-7\right)±\sqrt{\left(-7\right)^{2}-4\times 12}}{2\times 12} \\ x=\frac{-\left(-7\right)±\sqrt{49-48}}{2\times 12} \\ x=\frac{-\left(-7\right)±\sqrt{1}}{2\times 12} \\ x=\frac{7±1}{2\times 12} \\ x=\frac{7±1}{24} \\ x1=\frac{8}{24} = \frac{1}{3} \\ x2=\frac{6}{24} = \frac{1}{4}$