Bài 1:Tính
a)\(\left(\dfrac{3}{7}+\dfrac{1}{2}\right)^2\) b)\(\left(\dfrac{3}{4}-\dfrac{5}{6}\right)^2\)c) \(\dfrac{5^4.20^4}{25^5.4^5}\)
Bài 2:Tìm x
a)\(\left(x-\dfrac{1}{5}\right)^{2004}+\left(y+0,4\right)^{100}+\left(z-3\right)^{678}=0\)
b)\(\left(x+5\right)^3=-64\) c)\(\left(2x-3\right)^2=9\)
c)\(x^2+1=82\)
Bài 3:Tính
M=\(\dfrac{8^{10}+4^{10}}{8^4+4^{11}}\)
Bài 4:So sánh \(2^{24}\)và\(3^{16}\)
GIÚP MIK DZỚI,MÌNH TIK CHO ><