Giải các bất phương trình:
1,$\sqrt[3]{x-9}+2x^2+3x \leq \sqrt{5x-1}+1$
2,$(2+\sqrt{x^2-2x+5})(x+1)+4x\sqrt{x^2+1}\leq 2x\sqrt{x^2-2x+5}$
3,$(x+1)\sqrt{x+2}+(x+6)\sqrt{x+7}\geq (x+3)(x+4)$
4,$(x+1)\sqrt{4x+5}+2(x+5)\sqrt{x+3}\geq 3x^2+14x+13$
5,$\sqrt{2x-11}-\sqrt{2x^2-16x+28}\geq 5-x$
6,$(x+1)\sqrt{3x+1}+x^3+2x^2+1\geq 2\sqrt{x^2-x+1}+6x$
7,$\sqrt{2x^2+11x+15}+\sqrt{x^2+2x-3}\geq x+6$