Step-by-step explanation:
(1)[tex]\frac{-4a}{8ab}[/tex]
Apply exponential property . cancel out 'a'
[tex]\frac{-1}{2b}[/tex]
(2)[tex]\frac{-9b^3}{-3a^2b}[/tex]
Apply exponential property. In division, subtract the exponents
[tex]\frac{3b^2}{1a^2}[/tex]
(3)[tex]\frac{3a^4}{1a^3 b^2}[/tex]
Apply exponential property. In division, subtract the exponents
[tex]\frac{3a}{b^2}[/tex]
(4) [tex]\frac{5a^4b}{-10a^2}[/tex]
Apply exponential property
[tex]\frac{-1a^2b}{2}[/tex]
