# What is the standard form of y=(2x+2)(-2x-3) +5x^2-8x?

$y = {x}^{2} - 18 x - 6$
$y = \left(2 x + 2\right) \left(- 2 x - 3\right) + 5 {x}^{2} - 8 x$
$\therefore y = - 4 {x}^{2} - 4 x - 6 x - 6 + 5 {x}^{2} - 8 x$
$\therefore y = {x}^{2} - 18 x - 6$