v rog mult CORONIAR

a) [25⁵•5⁶•(5⁰)⁵]:[(5¹⁰:5⁵)•(5³)³]=
=[(5²)⁵•5⁶•5⁰]:(5⁵•5⁹)=
=(5¹⁰•5⁶•5⁰):5¹⁴=
=5¹⁶:5¹⁴=
=5²=
=25
c) [(7⁵)²]⁵:(7²³•7¹⁵•7⁰•7•7⁹)=
=(7¹⁰)⁵:7⁴⁸=
=7⁵⁰:7⁴⁸=
=7²=
=49
Sper ca te-am ajutat :)