Răspuns :
a=100-(7^2+3^3)
a=100-(49+27)
a=100-36
a=64
b=25^4:5^8
b=(5^2)^4: 5^8
b=5^8:5^8
b=1
b^a=1^64= 1
a=100-(49+27)
a=100-36
a=64
b=25^4:5^8
b=(5^2)^4: 5^8
b=5^8:5^8
b=1
b^a=1^64= 1