# How do you find the product of (5y - 6)^2?

Jul 24, 2016

$= 25 {y}^{2} - 60 y + 36$
${\left(5 y - 6\right)}^{2}$
$= {\left(5 y\right)}^{2} + {\left(6\right)}^{2} _ 2 \left(5 y\right) \left(6\right)$
$= 25 {y}^{2} + 36 - 60 y$
$= 25 {y}^{2} - 60 y + 36$