1. The problem states that in question 2, part b2, only the $x$ in the numerator is squared. 2. This means the expression looks like $\frac{x^2}{\text{denominator}}$ where only the numerator's $x$ is squared. 3. To clarify, if the original expression was $\frac{x}{y}$, now it becomes $\frac{x^2}{y}$. 4. This affects how you simplify or solve the expression because the power applies only to the numerator. 5. Always apply exponent rules carefully: $\left(\frac{a}{b}\right)^n \neq \frac{a^n}{b^n}$ unless the entire fraction is raised to the power. 6. Here, since only numerator's $x$ is squared, denominator remains unchanged. 7. Final expression for part b2 is $\frac{x^2}{\text{denominator}}$ with denominator as given in the original problem.