`***`
`\frac{\sqrt{7-2\sqrt{10}}(7+2\sqrt{10})(74-22\sqrt{10])}{\sqrt{125}-4\sqrt{50}+5\sqrt{20}+\sqrt{8}}`
`=\frac{\sqrt{(\sqrt{5}-\sqrt{2})^2}(\sqrt{5}+\sqrt{2})^2(74-22\sqrt{10})}{5\sqrt{5}-20\sqrt{2}+10\sqrt{5}+2\sqrt{2}}`
`=\frac{|\sqrt{5}-\sqrt{2}|(\sqrt{5}+\sqrt{2})^2(74-22\sqrt{10})}{15\sqrt{5}-18\sqrt{2}}`
`=\frac{(\sqrt{5}-\sqrt{2})(\sqrt{5}+\sqrt{2})^2(74-22\sqrt{10})}{15\sqrt{5}-18\sqrt{2}}`
`=\frac{(5-2)(\sqrt{5}+\sqrt{2})(74-22\sqrt{10})}{15\sqrt{5}-18\sqrt{2}}`
`=\frac{(4\sqrt{5}+4\sqrt{2})(74-22\sqrt{10})}{3(5\sqrt{5}-6\sqrt{2})}`
`=\frac{296\sqrt{5}-440\sqrt{2}+296\sqrt{2}-176\sqrt{5}}{3(5\sqrt{5}-6\sqrt{2})}`
`=\frac{120\sqrt{5}-144\sqrt{2}}{3(5\sqrt{5}-6\sqrt{2})}`
`=\frac{24(5\sqrt{5}-6\sqrt{2})}{3(5\sqrt{5}-6\sqrt{2})}`
`=\frac{24}{3}`
`=6`
`=>VT=VP`
`=>Đpcm`
