SOLUTION: please help to solve this: (5r^2+2s)(2r^2-5s) Thankyou

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Question 759241: please help to solve this:
(5r^2+2s)(2r^2-5s)
Thankyou
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
(5r^2+2s)(2r^2-5s)
10r^4 - 23r^2s - 10s^2
Hope this helps.
:-)