SOLUTION: I need help solving this please. 4x(x-5)-5x(x-4)=-1

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Question 615563: I need help solving this please. 4x(x-5)-5x(x-4)=-1
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x:
4x%28x-5%29-5x%28x-4%29+=+-1 Expand the left side.
%284x%5E2-20x%29-%285x%5E2-20x%29+=+-1 Simplify.
%284x%5E2-5x%5E2%29-20x%2B20x+=+-1
-x%5E2+=+-1 Multiply by -1.
x%5E2+=+1 Take the square root of both sides.
x+=+1 or x+=+-1