Question

(ab-2a^2b)/a^2b

Answer 1

ab-2a^2b/a^2b= ab(1-2a)/ab.a=(1-2a)/b

Answer 2

\[{ab-2a^2b \over a^2b}={ab(1-2a) \over a^2b}={1-2a \over a}\]

Answer 3

It'a also the same as \(\frac{1}{a}-2\).