Tính. Tìm x

Tính:
a) ( 1/2 + 2/3 )^3
b) 5^3.( -1/25 )^3
c) 4^5 : 8^5
d) 4^9 . 10^2/20^8 . 4^3
e) 6^3 . 9/16.27
g) 3^17 . 81^11/27^10.9^15
Tìm x:
a) 4x=64
b) 2^x+1 = 32
c) 5x/25 = 5
d) ( x - 1/2 )^2 = 9
e) ( 2x + 1/4 )^2 = 0
g) ( 3x - 1 )^3 = -27
h) ( x-1 ) ^2 = 1/9
i) 9^x-1 = 1/9
k) 3^x + 3^x + 2 = 810
l) ( x - 3 )^2 + ( 4 - x )^2 = 0
j) 27/3^x = 3
m) | x + 2 | + ( y - 1/2 )^2 = 0
n) ( 2x - 5 )^2006 + ( 3y + 4 )^2008 = 0