### Home > GC > Chapter 12 > Lesson 12.1.4 > Problem12-37

12-37.

Distribute before simplifying.

10u − 4 = 14u
− 4 = 4u
u = − 1

Use the Zero Product Property.

$x=5, - \frac{ 8 }{3 }$

Divide by 2 first and be sure to find two solutions.

k = 1 or 9

Use the Quadratic Formula.

$\frac{ -7\pm \sqrt{ (7)^{2}-4(2)(-9) } }{4(2) } = \frac{-7 \pm \sqrt{121}}{8}$

p = −4.5 or 1