Răspuns:
7)25^18=(5^2)^18=5^36; 125^15=(5^3)^15=5^45
5^36, 5^40, 5^45 adica 25^18,5^40,125^15
9^51=(3^2)^51=3^102; 27^48=(3^3)48=3^144;
deci avem: 3^95; 9^51; 27^48
8^12=(2^3)^12=2^36; 32^7=(2^5)^7=2^35
27^8=(3^3)^8=3^24; 32^7, 8^12, 27^8
1)a) 2^51>2^18
b)7^32<9^32
2)25^ab=(5^2)^ab<5^26=> ab<26÷2, ab<13=>ab=12
3)4^32=(2^2)^32=2^64
8^24=(2^3)^24=2^72
16^25=(2^4)^25=2^100
2^64, 2^72, 2^100
4)???
