tìm x:
\(^{5^{x-2}-3^2=2^4-\left(2^8.2^4-2^{10}.2^2\right)}\)
\(697:\left[\left(15x+364\right):x\right]=17\)
\(\left(3x-2^4\right).7^3=2.7^4\)
a/\(^{3+2^{x-1}=24-\left[4^2-\left(2^2-1\right)\right]}\)
b/(x+1)+(x+2)+(x+3)+....+(x+100)=205550
c/Ix-5I=18+2x(-8)
d/\(\left(3x-2^4\right).7^5=2.7^6.\frac{1}{2009^0}\)
tìm x:
a) \(5^{x-2}-3^2=2^4-\left(2^8.2^4-2^{10}.2^2\right)\)
b) 697 : [ ( 15x + 364 ) : x ] = 17
c)\(\left(3x-2^4\right).7^3=2.7^4\)
tìm x biết \(\left(3.\left|x.\left(-24\right)\right|.7^{2019}\right)=2.7^{2020}.\frac{1}{2020}\)
tìm x \(\left(x+1\right)+\left(x+2\right)+\left(x+3\right)+\left(x+4\right)+...+\left(x+99\right)+\left(x+100\right)=5750\)
Tìm x biết :
a)x chia hết cho cả 12,25,30 và\(0\le x\le500\)
b)\(\left(3x-2^4\right).7^3=2.7^4\)
c)\(|x-5|=16+2.\left(-3\right)\)
1, Tính \(\frac{1}{2}-\left(\frac{1}{3}+\frac{2}{3}\right)+\left(\frac{1}{4}+\frac{2}{4}+\frac{3}{4}\right)-\left(\frac{1}{5}+\frac{2}{5}+\frac{3}{5}+\frac{4}{5}\right)+...+\left(\frac{1}{100}+\frac{2}{100}+\frac{3}{100}+...+\frac{99}{100}\right)\)2,Tính \(\left(1-\frac{1}{2^2}\right)x\left(1-\frac{1}{3^2}\right)x\left(1-\frac{1}{4^2}\right)x...x\left(1-\frac{1}{n^2}\right)\)
Tìm x:
\(^{7^{x-1}-2.7^{100}=5.7^{100}}\)
\(5^{x-4}=25\)
Tính:
\(\left(2^{100}.5+2^{100}.3\right):2^{101}\)
\(3^5:3^3+2^2.2^3-14\)
Mong các bạn giúp!!!!
tìm x :\(\frac{\left(28\frac{3}{7}-27\frac{5}{9}\right).\left(2^{26}+5.4^{12}\right)}{8^{8.}\left(x-4\right)}\)