Giải phương trình

1) \(\sqrt{x^2+10x+21}\)+6=3\(\sqrt{x+3}\)+2\(\sqrt{x+7}\)

2) \(\sqrt{x}\)+\(\sqrt{x-5}\)+\(\sqrt{x+7}\)=9

3) (x-2)(x+1)+3(x-2)\(\sqrt{\frac{x+1}{x-2}}\)=10

4) 3x+7\(\sqrt{x-4}\)=14\(\sqrt{x-4}\)-20

5)\(\left(\sqrt{x+1}+1\right)\)\(\left(\sqrt{x+1}+2x-5\right)\)=x

6)\(\sqrt{x^2-3x+2}\)+\(\sqrt{x+3}\)=\(\sqrt{x-2}\)+\(\sqrt{x^2+2x-3}\)

(Gấp xin hãy giải hộ vs ạ chiều e học rùi . E xin cảm ơn) GIẢI PHƯƠNG TRÌNH SAU

1)\(\frac{3}{\sqrt{x-2}+3}\)-\(\frac{1}{\sqrt{x+6}+3}\)=2

2)\(\sqrt{x^2+2x}\)+\(\sqrt{2x-1}\)=\(\sqrt{3x^2+4x+1}\)

4) ( 3x+1).\(\sqrt{2x^2-1}\)=5x²+\(\frac{3x}{2}\)

5) x²+7x=(2x+1).\(\sqrt{x^2+x+6}\)

6) \(\sqrt{5x^2+6x+5}\). (5x²+6x++6)=4x. (16x²+1)