Home > CAAC > Chapter 13 > Lesson 13.RE3-S > Problem 2-149
2-149.
Distribute the n.
Combine like terms, and factor the equation.
Simplify by Zero Product Property, then subtract 2 from both sides.
Remember to check your work.
n + 4 + (n2 + 2n) + n = 0
n2 + 4n + 4 = 0
(n + 2) (n + 2) = 0
n + 2 = 0
n = −2
Multiply both sides by x. Then set the equation equalto 0 and use the ZPP.
x = −4 or x = 1
Check your work.