(x+1)(x-3)\(\le0\)
\(\Rightarrow x+1=0\) \(hoặc\)\(x-3=0\)
\(x\in\left\{-1;3\right\}\)
(x+1)(x-3)\(\le0\)
\(\Rightarrow x+1=0\) \(hoặc\)\(x-3=0\)
\(x\in\left\{-1;3\right\}\)
tìm x và y biết
a) \(\left|5x+1\right|+\left|6y-8\right|\le0\)
b) \(\left|x+2y\right|+\left|4y-3\right|\le0\)
c) \(\left|x-y+2\right|+\left|2y+1\right|\le0\)
Tìm x,y thỏa mãn:
a)\(^{\left|x+2y\right|+\left|4y-3\right|\le0}\)
b)\(\left|x-y-5\right|+2017\left(y-11\right)^{2018}\le0\)
c)\(^{\left(x+y\right)^{2020}+2018.\left|y-1\right|=0}\)
Tìm các cặp số x,y
\(\left(x-3\right)^2+\left(2y-1\right)^2=0\)
\(\left(4x-3\right)^4+\left(y+2\right)^2\le0\)
Tìm x biết:\(\left(x^2-1\right)\cdot\left(x^2-3\right)\left(x^2-5\right)\left(x^2-7\right)\le0\)
tìm x biết
\(\left(x^2-1\right)\left(x^2-3\right)\left(x^2-5\right)\left(x^2-7\right)\le0\)
Tìm x,y biết :
a) \(\left|3.x-\dfrac{1}{2}\right|+\left|\dfrac{1}{4}.y+\dfrac{3}{5}\right|\)= 0
b)\(\left|\dfrac{3}{2}.x+\dfrac{1}{9}\right|+\left|\dfrac{5}{7}.y-\dfrac{1}{2}\right|\le0\)
tìm x,biết:
\(^{\left(x^2-1\right)\left(x^2-3\right)\left(x^2-5\right)\left(x^2-7\right)\le0}\)
Tìm x,y,z , biết:
\(\left|1-x\right|+\left|y-\frac{2}{3}\right|+\left|x+z\right|\le0\) 0
Tìm x, y, z biết:
a) \(\left|x-\frac{1}{2}\right|+\left|y+\frac{3}{2}\right|+\left|x+y-z-\frac{1}{2}\right|=0\)
b) \(\left|1-x\right|+\left|y-\frac{2}{3}\right|+\left|x+z\right|\le0\)
Tìm x, y, z, biết :
a) \(\left|\frac{1}{2}+x\right|+\left|x+y+z\right|+\left|\frac{1}{3}+y\right|=0\)
b) \(\left|\frac{1}{12}-x\right|+\left|\frac{1}{25}-y\right|+\left|z-\frac{14}{3}\right|\le0\)