4.b¹³×b×b²¹×b²⁰=b⁽¹³⁺¹⁺²¹⁺²⁰⁾=b⁵⁵
5.16⁴×4¹⁰×64⁵=(2⁴)⁴×(2²)¹⁰×(2⁶)⁵=2⁶⁶=2¹⁶×2²⁰×2³⁰=2⁶⁶
6.c⁵⁸ :c³⁹:c⁹=c⁽⁵⁸⁻³⁹⁻⁹⁾=c¹⁰
7.125⁴² :25⁶³=5⁴²ˣ³ :5²ˣ⁶³=5¹²⁶:5¹²⁶=5¹²⁶⁻¹²⁶=5⁰=1
8.(8³⁷×81²⁵) :(16²⁷×27³³)=[(2³)³⁷×(3⁴)²⁵) :[(2⁴)²⁷×(3³)³³]=(2¹¹¹×3¹⁰⁰):(2¹⁰⁸×3⁹⁹)=
=2³×3=8×3=24
9. 2¹×2²×2³×2⁴×....×2⁴⁵=2¹⁺²⁺³⁺⁴⁺...⁴⁵=2¹⁰³⁵
1+2+3+4+...+45=45×46/2=1035
10.(1+5¹⁰):(1+5¹⁰)=1
