a)( 2²⁰)²:2³⁵=2⁴⁰:2³⁵=2⁵
b)3³³:(3¹¹×3¹⁹)=3³³:3³⁰=3³
c)(7²⁰)³:7⁵⁸=7⁶⁰:7⁵⁸=7²
a) (2³⁷ : 2¹⁷)² : 2³⁵ =
= (2³⁷ ⁻¹⁷)² : 2³⁵
= (2²⁰)² : 2³⁵
= 2⁴⁰ : 2³⁵
= 2⁴⁰ ⁻³⁵
= 2⁵
= 32
b) (3¹¹)³ : (3¹¹ ₓ 3¹⁹) =
= 3 ³³ : 3 ¹¹⁺¹⁹
= 3 ³³ : 3 ³⁰
= 3 ³³ ⁻³⁰
= 3³
= 27
c) (7 ₓ 7¹⁹)³ : 7⁵⁸ =
= (7¹⁺¹⁹)³ : 7⁵⁸
= (7²⁰)³ : 7⁵⁸
= 7⁶⁰ : 7⁵⁸
= 7⁶⁰ ⁻⁵⁸
= 7²
= 49