Bài 1: ChoP=$\frac{x\sqrt{x}+26\sqrt{x}-19}{x+2\sqrt{x}-3}-\frac{2\sqrt{x}}{\sqrt{x}-1}+\frac{\sqrt{x}-3}{\sqrt{x}+3}$
a, rút gọn kq$\frac{x+16}{\sqrt{x}+3}$
b, tìm min P
Bài 2:
P=$\frac{3(x+\sqrt{x}-3)}{x+\sqrt{x}-2}+\frac{\sqrt{x}+3}{\sqrt{x}+2}+\frac{\sqrt{x}-2}{1-\sqrt{x}}$
a, rút gọn
b, tìm x để $P<\frac{15}{4}$
c, tìm max P