\(D=\frac{2x-3}{x-1}=\frac{2}{1}.\frac{x-1-2}{x-1}=2.1-\frac{2}{x-1}\)
=> \(x-1\inƯ\left(2\right)\)
* x - 1 = 1 => x = 0
* x - 1= 2=> x = 3
* x - 1 = -1 => x = 0
* x - 1 = -2 => x = -1
đúng ko nhỉ?
TIm x thuoc Z de cac ps sau co gia tri la so nguyen :
D = \(\frac{2x-3}{x-1}\)
Tim cac gia tri nguyen cua x de cac gia tri bieu thuc sau la so nguyen
a, 9-2x/x-3
b,3x-5/x-2
c,-3/4-x
cho M(x)=x2-x-2.Tim x thuoc Z de M(x) co gia tri la so nguyen to
tim cac gia tri nguyen cua x de gia tri bieu thuc y=2x^2+1/2x-1 la so nguyen
tim cac so nguyen x de cac bieu thuc sau co gia tri nguyen:
a.-24/x+18/x
b.2x-5/x+1
c.3x+2/x-1-x-5/x-1
d.5x-4/2x+3 - 2x-5/2x+3
tim cac gia tri nguyen cua x de cac gia tri bieu thuc sau la so nguyen
a,9-2x/x-3
b,3x-5/x-2
c,-3/4-x
tim cac so nguyen n de\(\frac{3n-1}{n-1}\) co gia tri la so nguyen
tim cac gia tri nguyen cua x de cac bieu thuc sau co gia tri lon nhat tim gia tri do
\(A=\frac{1}{7-x}\)
\(B=\frac{27-2x}{12-x}\)
C=\(\frac{14-x}{4-x}\)
D=\(\frac{7x-8}{2x-3}\)
Cho M :x-2/x+3
a, Tim x € Z de M co gia tri nguyen
b, Tim x € Z de M la gia tri nho nhat . Tim gia tri nho nhat do
