Consider $7x^{2}+30xy+8y^{2}$ as a polynomial over variable $x$.
$$7x^{2}+30yx+8y^{2}$$
Find one factor of the form $kx^{m}+n$, where $kx^{m}$ divides the monomial with the highest power $7x^{2}$ and $n$ divides the constant factor $8y^{2}$. One such factor is $7x+2y$. Factor the polynomial by dividing it by this factor.
