SOLUTION: 1. Factor by grouping: a. 5r^2+15rs-2rs-6s^2 b. 10p^3-2p^2q^2-5pq+q^3

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Question 60353: 1. Factor by grouping:
a. 5r^2+15rs-2rs-6s^2

b. 10p^3-2p^2q^2-5pq+q^3
Answer by tutorcecilia(2144) About Me  (Show Source):
You can put this solution on YOUR website!
a. 5r^2+15rs-2rs-6s^2
(5r)(r+3s)-(2s)(r+3s)
(5r-2s)(r+3s)
.
b. 10p^3-2p^2q^2-5pq+q^3
(2p^2)(5p-q^2)-(q)(5p-q^2)
(2p^2-q)(5p-q^2)