SOLUTION: Find all real solutions. square root of x^2-x-4=4 everything to the left is under one sqaure root.

Question 517824: Find all real solutions.
square root of x^2-x-4=4
everything to the left is under one sqaure root.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find all real solutions.
square root of x^2-x-4=4
everything to the left is under one square root.
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square both sides to get:
x^2-x-4 = 16
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x^2-x-20 = 0
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Factor:
(x-5)(x+4) = 0
x = 5 or x = -4
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Cheers,
Stan H.
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