Các câu hỏi tương tự
TÌM X
a,\(\left(\frac{1}{7}x-\frac{2}{7}\right).\left(\frac{1}{5}x+\frac{3}{5}\right).\left(\frac{1}{3}x+\frac{4}{3}\right)=6\)
b,\(\left(x^2-4\right).\left(2x+\frac{4}{3}\right)=0\)
Tìm x:
\(\frac{3}{\left(x+1\right)\left(x+4\right)}+\frac{3}{\left(x+4\right)\left(x+7\right)}+\frac{3}{\left(x+7\right)\left(x+10\right)}=\frac{1}{2}\)
tìm x:
\(|x+\frac{1}{3}|+\frac{4}{5}=|\left(-3,2\right)+\frac{2}{5}|+\left(27-\frac{3}{5}\right)\left(27-\frac{3^2}{7}\right)\left(27-\frac{3^3}{7}\right)...\left(27-\frac{3^{2010}}{2014}\right)\)
\(\left(\frac{x}{2}\right)^2+\left(\frac{x}{3}\right)^2+\left(\frac{x}{4}\right)^2=\left(\frac{x}{5}\right)^2+\left(\frac{x}{6}\right)^2+\left(\frac{x}{7}\right)^2\)
tìm x
tìm x,y biết:
a)\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
b)\(x=6:\frac{1}{3}-0,8:\frac{1,5}{\frac{3}{2}.0,4.\frac{50}{1:\frac{1}{2}}}+\frac{1}{4}+\frac{1+\frac{1}{2}.\frac{1}{0,25}}{6-\frac{46}{1+2,2.10}}\)
c)\(y=77^{-1}.7^4.11^2.\left(1.11\right)^4.\left(7^2\right)^{-8}.\left(7^{-8}\right)^{-3}.\frac{1}{\left(-11\right)^{-3}}\)
Bài 2: Tìm x, y biết :
a) \(\left(3x-\frac{y}{5}\right)^2+\left(2y+\frac{3}{7}\right)^2=0\)
b) \(\left(x+y-\frac{1}{4}\right)^2+\left(x-y+\frac{1}{5}\right)^2=0\)
Tìm x:
a)\(\left(x-\frac{2}{5}\right)\left(x+\frac{3}{7}\right)\left(x+\frac{3}{4}\right)>0\)
b)\(\left(x-2\right)\left(x+\frac{3}{5}\right)\left(x-\frac{2}{3}\right)< 0\)
Tìm \(x;y;z\in Q\) biết:
a)\(\left|x+\frac{3}{7}\right|+\left|y-\frac{4}{9}\right|+\left|z+\frac{5}{11}\right|=0\)
b)\(\left|x-\frac{2}{5}\right|+\left|x+y-\frac{1}{2}\right|+\left|y-z+\frac{3}{5}\right|=0\)
c)\(\left|x+y-2,8\right|+\left|y+z+4\right|+\left|z+x-1,4\right|=0\)
Giúp mk vs.Ai làm được câu nào thì làm!
\(\left(\frac{x}{2}\right)^2+\left(\frac{x}{3}\right)^2+\left(\frac{x}{4}\right)^2+\left(\frac{x}{5}\right)^2+\left(\frac{x}{6}\right)^2+\left(\frac{x}{7}\right)^2\) . Tìm giá trị thỏa mãn của x