Question

ײ/4 - 5/3=-1, U=R calcule o conjunto solução

Answer 1

$\frac{x^2}{4} - \frac{5}{3} = -1\\\\\frac{x^2}{4} = -1 + \frac{5}{3}\\\\\frac{x^2}{4} = \frac{2}{3}\\\\x^2 = \frac{8}{3}\\\\x = \pm \sqrt{\frac{8}{3}}\\\\x = \pm \frac{2\sqrt{2}}{\sqrt{3}}\\\\x = \pm \frac{2\sqrt{6}}{3}$