Răspuns:
4x² - 8 = 2x
4x² - 2x - 8 = 0
2x² - x - 4 = 0
[tex]x=\frac{-(-1)+/-\sqrt{(-1)^{2}-4*2*(-4)}}{2*2}\\ \\x=\frac{1+/-\sqrt{33}}{4}\\\\x_{1}=\frac{1-\sqrt{33}}{4}\\ \\x_{2}=\frac{1+\sqrt{33}}{4}[/tex]