\(\left(x-7\right)^{x+1}-\left(x-7\right)^{x+11}=0\)
Tìm x biết
\(\left(x-7\right)^{x+1}-\left(x-7^{ }\right)^{x+11}=0\)
Tìm x,y biết:
\(\left|x+\frac{11}{7}\right|+\left|x+\frac{2}{7}\right|+\left|x+\frac{4}{7}\right|=4x\)
\(\left(x-2\right)^{2014}+\left(y-1\right)^{2016}+\left(x-y-2\right)=0\)
mk đang cần gấp giúp mk nha các bn
Tìm x thuộc z:
\(a,\left(x^2+5\right)\left(x^2-25\right)=0\)
\(b,\left(x-2\right)\left(x+1\right)=0\)
\(c,\left(x^2+7\right)\left(x^2-49\right)< 0\)
\(d,\left(x^2-7\right)\left(x^2-49\right)< 0\)
\(e,\left(x-1\right)\left(x-2\right)\left(x^2+4\right)>0\)
GIÚP MIK VS, MIK CẦN GẤP
\(\left(x^2+5\right).\left(x-3\right)>0\)
\(\left(-x^2-7\right).\left(x+10\right)>0\)
\(\left(x-2\right).\left(x+2\right)< 0\)
\(\left(x-2\right)^2-25=0\)
\(\left(x^2+1\right).\left(x-2\right).\left(x+3\right)>0\)
Tìm các số nguyên x thỏa mãn :
a, \(\left(x-2\right)\left(x-7\right)< 0\)
b, \(\left(x^2-3\right)\left(x^2-10\right)< 0\)
c, \(\left(x^2-1\right)\left(x^2-4\right)\left(x^2-7\right)\left(x^2-10\right)< 0\)
d, \(\left(x^3+5\right)\left(x^3+10\right)\left(x^3+15\right)\left(x^3+30\right)< 0\)
Tìm x \(\in\)Z , biết:
a)(\(\left(x-4\right).\left(x+7\right)=0\)
b)\(x.\left(x+3\right)=0\)
c)\(\left(x-2\right).\left(5-x\right)=0\)
d)\(\left(x-1\right).\left(x^2+1\right)=0\)
1 ) \(\left(x-3\right).\left(x-5\right)< 0\)
2) \(-6x-\left(-7\right)=25\)
3) \(46-\left(x-11\right)=-48\)
4) \(\left(x+15\right).\left(x-2\right)=0\)
5) \(3.\left(4-x\right)-2.\left(x-5\right)=12\)
Làm ơn giúp mình nha cố gắng làm đúng nha !!!!
\(e.\left(x-2\right).\left(x+2\right)<0\)\(d.\left(_{-x^2-7}\right).\left(x+1\right)>0\)\(c.\left(x^2+5\right).\left(x-3\right)>0\)\(a.\left(x^2-3\right).\left(2x+10\right)=0\)\(b.\left(x-2\right)^2-25=0\)