Các câu hỏi tương tự
tim x de cac bieu thuc sau co gia tri am
a] x2-\(\frac{2}{5}x\)
b] \(\frac{x-2}{x-6}\)
Tim x de cac bieu thuc co gt duong
a,A=x2+4x
b,B=(x-3).(x+7)
c,C=(\(\frac{1}{2}\)-x).(\(\frac{1}{3}\)-x)
Cho 2 bieu thuc A=\(\frac{3x^2-9x+2}{x-3}\)va B=\(\frac{4x-7}{x-2}\). Tim cac gti cua x de ca 2 bieu thuc cung co gtri nguyen
tim cac so nguyen x de cac bieu thuc sau co gia tri nho nhat
A=\(\frac{1}{7-x}\)
B=\(\frac{7-x}{x-5}\)
C=\(\frac{5x-19}{x-4}\)
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 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=\(\frac{7x-8}{2x-3}\)
tim cac gia tri cua x de bieu thuc sau nhan gia tri am
a)x mu 2 + 5x b)x mu 2 - 5/2x c)3(2x+3)(3x-5) d)x - 2/x-6 e) x mu 2 -1/x mu 2
tim cac gia tri cua x de bieu thuc 3/4*x-1>1/2*x+5
tim 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=\(\frac{7X-8}{2X-3}\)