Question

-2x²+x+2 qual o resultado?​

Answer 1

Resposta:

$x_{1}= -1\\ x_{2}= \frac{1}{2}$

Explicação passo-a-passo:

$x= \frac{-1+-\sqrt{1-4.2.-2} }{4} \\\\x=\frac{-1+-\sqrt{9} }{4}\\\\x=-\frac{-1+-3}{4} \\\\x_{1} =-1\\x_{2}=\frac{1}{2}$