IDNLearn.com makes it easy to find the right answers to your questions. Discover thorough and trustworthy answers from our community of knowledgeable professionals, tailored to meet your specific needs.
Step-by-step explanation:
A: n(n+1) = 72
B
n^2 + n = 72
n^2 + n -72 =0
(n+9)(n-8) = 0