Find the area of the field whose length is $3x^2y+y^2$ and breadth is $\large\frac{5}{8} $$x^2$

Question

$\begin{array}{1 1} \frac{15}{8} x^4y+\frac{5}{8} x^2y^2 \\ \frac{15}{8} x^4y \\ \frac{5}{8}x^2y^2 \\ \frac{15}{8}xy+\frac{5}{8}x^2y^2 \end{array} $