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| Math Central | Quandaries & Queries |
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Question from Nilesh, a student: How to solve (x-y)^1/2 + 3(x-y) = 30 ; xy + 3(x-y) = 11 ? . |
Hi Nilesh,
I can help get you started.
Focus on the first equation
\[(x-y)^{1/2} + 3(x-y) = 30\]
and let
\[z = (x-y)^{1/2}.\]
Once you have found $x$ and $y$ make sure you verify your answer.
Penny
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