OK. I have two equations which I can't solve. Can you help me with these: 1. $\displaystyle x\sqrt{x}+x(x-1)=2(x-1)^3$ 2. $\displaystyle \sqrt{3x+19-\frac {3}{x}}-\sqrt{x+18+\frac {3}{x}}=1$
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Why do you expect to be able to "solve" those? What methods are allowed?
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