Bất phương trình bậc nhất một ẩn
Các câu hỏi tương tự
\(\left(x-1\right)\left(x^2-x+1\right)-2x=x\left(x+1\right)\left(x-1\right)\)
Giải phương trình sau:
a) frac{10}{left(x+5right)left(x-1right)}+frac{3}{1-x}frac{5}{x+5}
b) frac{x-1}{x+2}+frac{x+3}{x-4}frac{2}{left(x-2right)left(4-xright)}
c) frac{7x-3}{x-x^3}frac{1}{x-1}-frac{5}{xleft(x-1right)}
d) frac{1}{left(x+2right)}+frac{1}{left(x+3right)}frac{1}{left(x+2right)left(x+3right)}
Đọc tiếp
Giải phương trình sau:
a) \(\frac{10}{\left(x+5\right)\left(x-1\right)}+\frac{3}{1-x}=\frac{5}{x+5}\)
b) \(\frac{x-1}{x+2}+\frac{x+3}{x-4}=\frac{2}{\left(x-2\right)\left(4-x\right)}\)
c) \(\frac{7x-3}{x-x^3}=\frac{1}{x-1}-\frac{5}{x\left(x-1\right)}\)
d) \(\frac{1}{\left(x+2\right)}+\frac{1}{\left(x+3\right)}=\frac{1}{\left(x+2\right)\left(x+3\right)}\)
Giải các phương trình:
\(a)\left|x-3\right|-x=7\\ b)\left|x+3\right|=\left|5-x\right|\\ c)\left|x\right|-\left|2x+3\right|=x-1\\ d)x-\left|x+1\right|+2\left|x-1\right|=0\)
Giải bpt sau
a, left(x+3right)^2-left(x-3right)^2le3left(x+1
right)
b, 2left(x+3right).left(x+4right)left(x-2right)^2+left(x-1right)^2
c, 5x^2-18x+19-left(2x-3right)^20
d, dfrac{left(3x-2right)^2}{4}-dfrac{3left(x-2right)}{8}-1dfrac{-15xleft(5-3xright)}{2}
e, 2x^2+2x+2-dfrac{15left(x-1right)}{2}-12xleft(x-2,75right)
g, dfrac{5x^2-3}{5}+dfrac{3x-1}{4} dfrac{xleft(2x+3right)}{2}-5
Đọc tiếp
Giải bpt sau
a, \(\left(x+3\right)^2-\left(x-3\right)^2\le3\left(x+1
\right)\)
b, \(2\left(x+3\right).\left(x+4\right)>\left(x-2\right)^2+\left(x-1\right)^2\)
c, \(5x^2-18x+19-\left(2x-3\right)^2>0\)
d, \(\dfrac{\left(3x-2\right)^2}{4}-\dfrac{3\left(x-2\right)}{8}-1>\dfrac{-15x\left(5-3x\right)}{2}\)
e, \(2x^2+2x+2-\dfrac{15\left(x-1\right)}{2}-1>2x\left(x-2,75\right)\)
g, \(\dfrac{5x^2-3}{5}+\dfrac{3x-1}{4}< \dfrac{x\left(2x+3\right)}{2}-5\)
\(2\left(x-2\right)^2-\left(x-2\right)\left(x+2\right)< x\left(x-1\right)\)
Giải phương trình sau:
a) \(\frac{10}{\left(x+5\right)\left(x-1\right)}+\frac{3}{1-x}=\frac{5}{x+3}\)
b) \(\frac{x-1}{x+2}+\frac{x+3}{x-4}=\frac{2}{\left(x-2\right)\left(4-x\right)}\)
c) \(\frac{7x-3}{x-x^3}=\frac{1}{x-1}-\frac{5}{x\left(x-1\right)}\)
d) \(\frac{1}{x+2}+\frac{1}{x+3}=\frac{1}{\left(x+2\right)\left(x+3\right)}\)
B1
\(\dfrac{3x+5}{2}-1\le\dfrac{x+2}{3}+x\)
Có bnhieu nghiệm nguyên lớn hơn -10
BÀI 2 . Tập nghiệm S của btp\(\left(1-\sqrt{2}\right)x< 3-2\sqrt{2}\)
BÀI 3 \(\left(2X-1\right)\left(x+3\right)-3x+1\le\left(x+1\right)\left(x+3\right)+x^2-5\) có tập nghiệm là?
Giải phương trình sau:
a) \(\frac{10}{\left(x+5\right)\left(x-1\right)}+\frac{3}{1-x}=\frac{5}{x+5}\)
b) \(\frac{x-1}{x+2}+\frac{x+3}{x-4}=\frac{2}{\left(x-2\right)\left(4-x\right)}\)
c) \(\frac{7x-3}{x-x^3}=\frac{1}{x-1}-\frac{5}{\left(x-1\right)}\)
d) \(\frac{1}{x+2}+\frac{1}{x+3}=\frac{1}{\left(x+2\right)\left(x+3\right)}\)
Cho \(x,y,z\ge0;x\ne y\ne z\) và \(\left(x+z\right)\left(y+z\right)=1\). Tìm: \(MinP=\dfrac{1}{\left(x-y\right)^2}+\dfrac{1}{\left(y+z\right)^2}+\dfrac{1}{\left(z+x\right)^2}\)