Mister Exam

3√x+y-2√x-y=4; 2√x+y-√x-y

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The solution

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3*\/ x  + y - 2*\/ x  - y = 4
$$- y + \left(- 2 \sqrt{x} + \left(3 \sqrt{x} + y\right)\right) = 4$$
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2*\/ x  + y - \/ x  - y = 0
$$- y + \left(- \sqrt{x} + \left(2 \sqrt{x} + y\right)\right) = 0$$
-y - sqrt(x) + 2*sqrt(x) + y = 0