Question

3 m square + 2 minus 7 is equals to zero

Answer 1

solution.

$3 {m}^{2} + 2 - 7 = 0 \\ \\ 3 {m}^{2} = 5 \\ \\ {m}^{2} = \frac{5}{3} \\ \\ m \: = \sqrt{ \frac{5}{3} }$