[tex]xy \times {x}^{2} {y}^{3} [/tex] the answer is [tex] {x}^{3} {y}^{4} [/tex] you must add the exponents when multiplying their coefficients. The [tex]xy[/tex] are technically [tex] {x}^{1} {y}^{1} [/tex] for which your answer is [tex] {x}^{3} {y}^{4} [/tex]
