# How do you factor -4x^2 - 23x + 6?

$\left(4 x - 1\right) \left(x + 6\right)$
$- 4 {x}^{2} - 23 x + 6 = 4 {x}^{2} + 23 - 6$
$4 {x}^{2} + 24 x - x - 6 = 4 x \left(x + 6\right) - 1 \left(x + 6\right)$ therefore: $\left(4 x - 1\right) \left(x + 6\right)$
$x = - 6 \mathmr{and} + 1$