[tex]\begin{gathered}\begin{gathered}1 \left(\frac{a}{b}\right) = \frac{b}{2a} \left(\frac{b}{2a}\right)^2 = \frac{b^2}{4a^2}\end{gathered}\end{gathered}[/tex]What you are doing here is simplifying algebraic fractions and applying exponent rules.To solve or simplify this type of problem, you will use:1. Multiplication of fractions — multiply numerators together and denominators together.2. Exponent rules — when raising a fraction to a power, raise both numerator and denominator to that power.3. Simplifying fractions by factoring and reducing common factors