Cumulative Exam — Cumulative exam

Question 14 • Crowley Original Credit Algebra I B

Which expression is equivalent to 7a2b + 10a2b2 + 14a2b3?

Answer

ab(7a2 + 10ab + 14b2)

a2b(7 + 10b + 14b2)

7a2(b + 3b2 + 7b3)

7a2b3(b2 + 3b + 7)