Question

Select the correct answer from the drop-down menu.

Answer 1

Here's the solution,

=》

$5v {}^{2} - 125 = 0$

=》

$5 v{}^{2} = 125$

=》

$v {}^{2} = \dfrac{125}{5}$

=》

${v}^{2} = 25$

=》

$v = \sqrt{25}$

=》

$v = + 5 \: \: or \: - 5$

so,

The solution set is (-5 , 5)