SOLUTION: how do I factor?? -c^4-c^3+56c^2

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Question 716611: how do I factor??
-c^4-c^3+56c^2
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
Common factors first, and getting that minus sign out of the way would be nice too.
-c%5E4-c%5E3%2B56c%5E2=-c%5E2%28c%5E2%2Bc-56%29
If you cannot figure how to factor c%5E2%2Bc-56
you can always resort to solving c%5E2%2Bc-56=0
using the quadratic formula, but
c%5E2%2Bc-56=%28c%2B8%29%28c-7%29 so
-c%5E4-c%5E3%2B56c%5E2=highlight%28-c%5E2%28c%2B8%29%28c-7%29%29