### Home > AC > Chapter 9 > Lesson 9.1.1 > Problem9-9

9-9.

1. $2k^2+k−6=0$

$k\ =-2\text{ or }\frac{3}{2}$

1. $m^2=9$

$m =\pm3$

1. $w(2w+8)=24$

Make sure to set the equation equal to $0$.

$w=2\text{ or}-6$

1. $3n^2−4n=5$

$n \approx -0.79$