1. 30y^3 - 50y
A: 10y(3y - 5y)
2. Factor a^2 - 5a^2 + 2a -10 by grouping.
Algebra 1 Answer Evaluation - Reiny, Monday, March 24, 2014 at 6:09pm
check by expanding your answer, you will see that the first one is wrong
you probably meant
a^3 - 5a^2 + 2a -10 , says by grouping, so do that ...
= a^2(a-5) + 2(a-5)
= (a-5)(a^2 + 2)