Question

3x² - 7 = 0, determine os coeficientes

Answer 1

$3x {}^{2} - 7 = 0 \\ 3 {x}^{2} = 7 \\ {x}^{2} = \frac{7}{3} \\ x = \frac{ \sqrt{21} }{3}$

$x = - \frac{ \sqrt{21} }{3}$