a)2¹⁰⁰:[2⁵⁰×2⁴⁸+(2¹⁰×2¹⁵)⁵:2²⁷+(5⁷⁶:5⁷⁵-3)⁹⁰×2⁸+2⁹⁸]=
2¹⁰⁰:[2⁵⁰×2⁴⁸+(2²⁵)⁵:2²⁷+(5-3)⁹⁰×2⁸+2⁹⁸]=
2¹⁰⁰:(2⁹⁸+2¹²⁵:2²⁷+2⁹⁰×2⁸+2⁹⁸)=
2¹⁰⁰:(2⁹⁸+2⁹⁸+2⁹⁸+2⁹⁸)=
2¹⁰⁰:2⁹⁸·(1+1+1+1)=
2²·4=
8
b) [3⁷×3¹⁰+2²⁰³:2¹⁰⁸-5×(5²)⁵]:(3¹⁷+2⁹⁵-5¹¹)=
(3¹⁷+2⁹⁵-5¹¹):(3¹⁷+2⁹⁵-5¹¹)=
1