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a fost răspuns

Calculati
a)15^2:3^2-5^2
b) (2^3*2^5)^2:(2^5)^2
c)8^20:16^15+1^23+0^25
e) (2.5)^2^3 :(10^2)^3
Ajutatima va rog!!!

Răspuns :

Spidie
a)15²:3²-5²= 3²*5² :3² -5²=5²-5²=0
b) (2³*2⁵)² : (2⁵)²= (2⁸)² : 2¹⁰= 2¹⁶: 2¹⁰= 2⁶= (2³)²=8²=64
c)8²⁰:16¹⁵+1²³+0²⁵= (2³)²⁰ : (2⁴)¹⁵+1+0= 2⁶⁰ : 2⁶⁰+1=1+1=2
La e) cred ca nu ai copiat corect.