\(\left(x^2.y\right)^5.\left(x^2.y^2\right)^7.\left(x.y^2\right)^6.x^3\)
\(=x^{10}.y^5.x^{14}.y^{14}.x^6.y^{12}.x^3\)
\(=x^{33}.y^{31}\)
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\(\left(2\times X-y\right)^5+\left(2\times y-8\right)=0\\ \)
\(\left(2\times x-y\right)^5+\left(2\times y-8\right)^{2014}=0\)
Tìm xin Z:a. 2timesleft(x-5right)-3timesleft(x-4right)left(-6right)+15timesleft(-3right)b.left(2x-5right)-722c.left(2timesleft|xright|-6right)times1144d.left|x+3right|+left|x+5right|+left|x+9right|4xe.left|x-1right|+left|x-5right|4g.x+left(x+1right)+left(x+2right)+.......+1000
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Tìm \(x\in Z\):
a. \(2\times\left(x-5\right)-3\times\left(x-4\right)=\left(-6\right)+15\times\left(-3\right)\)
b.\(\left(2x-5\right)-7=22\)
c.\(\left(2\times\left|x\right|-6\right)\times11=44\)
d.\(\left|x+3\right|+\left|x+5\right|+\left|x+9\right|=4x\)
e.\(\left|x-1\right|+\left|x-5\right|=4\)
g.\(x+\left(x+1\right)+\left(x+2\right)+.......+100=0\)
Giup mk vs mk sap phai nop roi
\(\left(2\times x-y\right)^5+\left(2\times y-8\right)^{2014}=0\).Tim x,y
Chứng minh:
a) \(\left(5x+3\right)⋮\left(2-x\right)\)
b) \(x\times y+y\times1+2\times x=9\)
Bài 15: Tìm x biết:
a, \(-\frac{3}{5}\times x=\frac{1}{4}+0,75\)
b, \(\left(\frac{1}{7}-\frac{1}{3}\right)\times x=\frac{28}{3}\times\left(\frac{1}{4}-\frac{1}{7}\right)\)
c, \(\frac{5}{7}\times x=\frac{9}{8}-0,125\)
d, \(\left(\frac{2}{11}+\frac{1}{3}\right)\times x=\left(\frac{1}{7}-\frac{1}{8}\right)\times36\)
Tìm x biết left|2x-4right|+left|3y+12right|+left(2z-10right)^{10}le0left|x-3right|+left|2y-6right|+left(4x-3yright)^2le0left(x-7right)timesleft(x+3right)0left(x-7right)timesleft(x+3right)timesleft(x-5right)0
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Tìm x biết
\(\left|2x-4\right|+\left|3y+12\right|+\left(2z-10\right)^{10}\le0\)
\(\left|x-3\right|+\left|2y-6\right|+\left(4x-3y\right)^2\le0\)
\(\left(x-7\right)\times\left(x+3\right)>0\)
\(\left(x-7\right)\times\left(x+3\right)\times\left(x-5\right)<0\)
\(\left(\frac{2}{3}-1\right)\times\left(\frac{2}{5}-1\right)\times\left(\frac{2}{7}-1\right)\times...\times\left(\frac{2}{27}-1\right)\times\left(\frac{2}{29}-1\right)\)
\(\left(2\times x-15\right)^5=\left(2\times x-15\right)^3\)