Judith M. answered • 12/02/20
Tutor
4.9
(13)
Effective writing tutor
Hi, this question is asking you to cancel out like terms. It looks scary but you can see two terms that cancel each other out right away: 12n3 - 12n3
12n3 + 12n2 - 12n3 +18n
Let's rewrite the equation.
12n2 + 18n
Factor out like factors for 12 and 18 (factors: 2, 3, 6)
Answer: 6n(2n +3)
