P =\(\frac{2\sqrt{x}}{\sqrt{x}+3}+\frac{\sqrt{x}+1}{\sqrt{x}-3}-\frac{3+7\sqrt{x}}{x-9}\)
P = \(\frac{2\sqrt{x}\left(\sqrt{x}-3\right)+\left(\sqrt{x}+1\right)\left(\sqrt{x}+3\right)-\left(3+7\sqrt{x}\right)}{\left(\sqrt{x}+3\right)\left(\sqrt{x}-3\right)}\)
P = \(\frac{3x-9\sqrt{x}}{\left(\sqrt{x}-3\right)\left(\sqrt{x}+3\right)}\)
P =\(\frac{3\sqrt{x}}{\sqrt{x}+3}\)
Rút gọn
\(A=\left(\frac{\sqrt{x}-1}{3\sqrt{x}-1}-\frac{1}{3\sqrt{x}+1}+\frac{8\sqrt{x}}{9x-1}\right):\left(1-\frac{3\sqrt{x}-2}{3\sqrt{x}+1}\right)\)
\(B=\left(\frac{x-3\sqrt{x}}{x-9}-1\right):\left(\frac{9-x}{x+\sqrt{x}-6}+\frac{\sqrt{x}-3}{\sqrt{x}-2}-\frac{\sqrt{x}-2}{\sqrt{x}+3}\right)\)
B1, P=(\(\frac{1-a\sqrt{a}}{1-\sqrt{ }a}+\sqrt{a})(\frac{1+a\sqrt{a}}{1+\sqrt{a}}-\sqrt{a})\)
a, rút gọn P
B2, P=(\(\frac{2\sqrt{x}}{\sqrt{x}+3}+\frac{\sqrt{x}}{\sqrt{x}-3}_{ }-\frac{3x+3}{x-9}):(\frac{2\sqrt{x}-2}{\sqrt{x}-3}-1)\)
a, Rút gọn P
Rút gọn biểu thức:
a) \(A=\left(\frac{3x-3\sqrt{x}-3}{x+\sqrt{x}-2}+\frac{1}{\sqrt{x}-1}-\frac{1}{\sqrt{x}+2}\right):\frac{1}{\sqrt{x}+2}\left(x\ge0,x\ne1\right)\)
b) \(B=\frac{x\sqrt{x}-3}{x-2\sqrt{x}-3}-\frac{2\left(\sqrt{x-3}\right)}{\sqrt{x}+1}+\frac{\sqrt{x}+3}{3-\sqrt{x}}\left(x>0,x\ne9\right)\)
c) \(C=\frac{2\sqrt{x}-9}{x-5+6}-\frac{\sqrt{x}+3}{\sqrt{x}-2}-\frac{2\sqrt{x}+1}{3-\sqrt{x}}\left(x\ge0,x\ne4,x\ne9\right)\)
\(\frac{2\sqrt{x}}{\sqrt{x}-3}-\frac{11\sqrt{x}-3}{9-x}+\frac{\sqrt{x}+1}{\sqrt{x}-3}\)
Rút gọn
a, P=\((\frac{1-a\sqrt{a}}{1-\sqrt{a}}+\sqrt{a})(\frac{1+a\sqrt{a}}{1+\sqrt{a}}-\sqrt{a}\))
Rút gọn P.
b, P=(\(\frac{2\sqrt{x}}{\sqrt{x}+3}+\frac{\sqrt{x}}{\sqrt{x}-3}-\frac{3x+3}{x-9}):(\frac{2\sqrt{x}-2}{\sqrt{x}-3}-1)\)
Rút gọn P
(Làm ơn giúp mk với..arigato cực cực super nhiều ạ...
P=\(\frac{2\sqrt{x}}{\sqrt{x}+3}+\frac{\sqrt{x}}{\sqrt{x}-3}-\frac{3x+3}{x-9}\) Q=\(\frac{\sqrt{x}+1}{\sqrt{x+3}}\) (x>=0,x khác 9)
a, Rút gọn M=\(\frac{P}{Q}\)
b, cho A=xM+\(\frac{4x+7}{\sqrt{x}+3}\) Tìm GTNN của A
P= \(\left(\frac{\sqrt{x}}{3+\sqrt{x}}+\frac{2x}{9-x}\right):\left(\frac{\sqrt{x}-1}{x-3\sqrt{x}}-\frac{2}{\sqrt{x}}\right)\)
Rút gọn
Cho biểu thức: A=\(\frac{2\sqrt{x}}{\sqrt{x}+3}+\frac{\sqrt{x}+1}{\sqrt{x}-3}+\frac{3-11\sqrt{x}}{9-x},B=\frac{\sqrt{x}-3}{\sqrt{x}+1}\)
a,Tính giá trị của B tại x=36
b,Rút gọn A
A=\(\frac{2\sqrt{x}}{\sqrt{x}+3}+\frac{\sqrt{x}+1}{\sqrt{x}-3}+\frac{3-11\sqrt{x}}{9-x},B=\frac{\sqrt{x}-3}{\sqrt{x}+1}\)
a,rút gọn A
b,Tìm số nguyên x để gt biểu thức P=A.B là số nguyên
