\(A=\frac{\sqrt{x}+4}{\sqrt{x}+2};B=\left(\frac{\sqrt{x}}{\sqrt{x}+4}+\frac{4}{\sqrt{x}-4}\right):\frac{x+16}{\sqrt{x}+2}\)

a. rut gon B

b. Tim x nguyen de P = B(A-1) nguyen

giup minh voi a

Cho bthuc: \(A=\frac{1}{2\sqrt{x}-2}-\frac{1}{2\sqrt{x}+2}+\frac{\sqrt{x}}{1-x}\)

a) Rut gon A

b) Tim gia tri cua x de /A/ =\(\frac{1}{2}\)

c) Tim x nguyen de A co gia tri nguyen

a)\(\left(\frac{x\sqrt{x}-1}{x-\sqrt{x}}-\frac{x\sqrt{x}+1}{x+x\sqrt{x}}\right):\frac{2\left(x-2\sqrt{x}+1\right)}{x-1}\)

Rut gon

Tim x de B nguyen

cho bieu thuc C =\(\left(\frac{x-\sqrt{x}}{\sqrt{x}-1}+1\right):\left(\frac{x+\sqrt{x}}{\sqrt{x}+1}\right)\)

a. tim dieu kien de C co nghia ?

b.rut gon C ?

c. tinh C tai x=\(\frac{4}{9}\)

d. tim x de C= 5

e.tim gia tri x nguyen de C co gia tri nguyen

\(A=\frac{\sqrt{x}+1}{\sqrt{x}-1}.\) Tim x de A la so nguyen

1) Cho bieu thuc: \(B=\left(\frac{\sqrt{x}}{\sqrt{x}+4}+\frac{4}{\sqrt{x}-4}\right):\frac{x+16}{\sqrt{x}+2}\left(x\ge0,x\ne16\right)\)

a) Cho bieu thuc A= \(\frac{\sqrt{x}+4}{\sqrt{x}+2}\) ; voi cac cua bieu thuc A va B da cho, hay tim cac gia tri cua x nguyen de gia tri cua bieu thuc B(A;-1) la so nguyen

Cho bieu thuc :

A=\(\frac{\sqrt{x}-1}{\sqrt{x}+1}-\frac{\sqrt{x}+3}{\sqrt{x}-2}-\frac{x+5}{x-\sqrt{x}+2}\)

a.Rut gon A

b.Tim gia tri cua x de A <-1

C.Tìm giá trị của x để A nguyen

tim x nguyen de \(\frac{2012\sqrt{x+5}}{1006\sqrt{x+1}}\)la so nguyen

cho A=\(\frac{\sqrt{x}+1}{\sqrt{x}-3}\)(x\(\ge\)0)

tim so nguyen  de A co gia tri la so nguyen