Giải pt:
1) $\frac{9-2x}{\sqrt{4-x}}+\frac{4x+3}{\sqrt{4x+1}}=\frac{15}{2}$
2) $\sqrt{x+1}+\frac{4(\sqrt{x+1}+\sqrt{x-2})}{3(\sqrt{x-2}+1)^{2}}=3$
3) $\frac{3}{\sqrt{x}}+\sqrt[3]{2x^{3}-10}=x$
4) $x\sqrt{1+x}+(x+2)\sqrt{1-x}=x+1+\sqrt{1-x^{2}}$
5) $\sqrt{1+\sqrt{2x-x^{2}}}+\sqrt{1-\sqrt{2x-x^{2}}}=2(1-x)^{4}(2x^{2}-4x+1)$
6) $x^{2}+\sqrt[3]{x^{4}-x^{2}}=2x+1$