sqrt(4x-1) - sqrt(x-1) = 3
Square everything.
(4x-1) - (x-1) = 9
4x-1 - x+1 = 9
3x = 9
x = 3
English
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The answers are 1 and 5. I just don't know how to find them.
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Make sure you have typed the equation correctly as that answer is correct for the one you provided.
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You squared everything incorrectly, see my response for details :)
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I did.
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You changed the 1 to a 5, don't lie.
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The only way to get there is if you have a variable that is squared so that you have a quadratic equation. Check the book again.
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Put 3 into the equation. It didn't work.