Tim so nguyen x de cac phan so sau co gia tri nguyen:

a) \(\frac{13}{x-5}\) b)\(\frac{x+3}{x-2}\) c)\(\frac{2x}{x-2}\)

GIUP MINH NHA MAI THI HKII ROI

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

Tim cac gia tri nguyen cua x de phan thuc sau co gia tri nguyen:

\(A=\frac{2x^3-6x^2+x-8}{x-3}\)

\(B=\frac{x+2}{x+4}\)

Tim x nguyen de phan so sau co gia tri nguyen

a) \(\frac{x^2-6x-3}{x-4}\) b) \(\frac{x^2-x+1}{x+2}\)

1, tim x thuoc Z de cho cac phan so sau la so nguyen

A, x+1 / 3

B, 17 / x -1

2, tim x thuoc Z de cho cac phan so sau dong thoi co gia tri nguyen

C, -12 / x

D, 15 / x -2

E, 8 / x +1

1. Cho Phan so B=\(\frac{n}{n-4}\)(voi n \(\in\)Z)

a. Tim So nguyen n de B la Phan so

b. Tim so Nguyen n de B co Gia tri la so tu nhien

2. Tim cac so nguyen x, y biet

a.\(\frac{x}{-3}=\frac{4}{y}\)

b. \(\frac{2}{x}=\frac{y}{-9}\)

TIm x thuoc Z de cac ps sau co gia tri la so nguyen :
D = \(\frac{2x-3}{x-1}\)

TIm x thuoc Z de cac ps sau co gia tri la so nguyen :
D = \(\frac{2x-3}{x-1}\)