g) 3.2.63 = 3.2.2^3. 3^3 = 2^4 . 3^4
h)4.16.42 = 4 . 4^2 . 4^2 = 4^5
i)32.27.3 = 3^2 * 3^3 *3 = 3^6
k)254:56= 5^8 : 5^6 = 5^2
l)21+x=16
2 * 2^x = 16
2^x = 16:2
2^x = 8
2^x = 2^3
x=3
m)4x+2=16.43
4^x . 4^2 = 4^2 . 4^3
4^x = 4^2 . 4^3 : 4^2
4^x = 4^3
x=3