Question 841411
Same base, multiplication, exponents add.
Same base, division, exponents subtract.
{{{5^(-2)*5^(3)=5^(-2+3)=5^(1)}}}
{{{5^(5)*5^(-7)=5^(5-7)=5^(-2)}}}
{{{(5^(-2)*5^(3))/(5^(5)*5^(-7))=5^(1)/5^(-2)=5^(1-(-2))=5^3=125}}}