SOLUTION: solve x squared-4x-5=0

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Question 42589: solve x squared-4x-5=0
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve:
x%5E2-4x-5+=+0 This is factorable so you can solve it by factoring.
%28x%2B1%29%28x-5%29+=+0 Apply the zero products principle.
x%2B1+=+0 and/or x-5+=+0
If x%2B1+=+0 then x+=+-1
If x-5+=+0 then x+=+5
The roots are:
x = -1
x = 5