SOLUTION: HELP ME SIMPLIFY THIS PPLEASEEEE! I must show my work! Thank you kindly! -9n(1-n) + 4(n^2+n)

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Question 36757: HELP ME SIMPLIFY THIS PPLEASEEEE!
I must show my work! Thank you kindly!
-9n(1-n) + 4(n^2+n)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-9n(1-n) + 4(n^2+n)
=-9n+9n^2+4n^2+4n
=(-9n+4n)+(9n^2+4n^2)
=-5n+13n^2
Cheers,
Stan H.