Question

simplify and write the answer with positive exponets

a--->
$10 ^{ - 5} \div 10 ^{ - 2}$

Answer 1

a-m=1/a to the power of m
1/10 to the power of 5÷1/10to the power of 2
=10to the power of 5/1÷10to the power of 2/1
=10to the power of 2/1×1/10to the power of 2
=10×10×10×10×10/1×1/10×10
=300