# What is sum of the solutions of 64y^2=-81?

Mar 23, 2018

$0$
${y}^{2} = - \frac{81}{64}$
$\sqrt{{y}^{2}} = \sqrt{- \frac{81}{64}}$
$| y | = \frac{\sqrt{- 81}}{\sqrt{64}}$
$y = - \frac{81}{8}$ OR $- \frac{81}{-} 8$
$- \frac{81}{8} + \frac{81}{8}$
$0$