Answer
$15x^2y^2+xy-2$
Work Step by Step
$$(3xy-1)(5xy+2)$$
To multiply two binomials (expressions with two terms) multiply each term in the first binomial by each term in the second binomial:
$$=(3xy\times 5xy)+(3xy\times 2)+(-1\times 5xy)+(-1\times 2)$$ $$=15x^2y^2+6xy-5xy-2$$
Combine like terms:
$$=15x^2y^2+xy-2$$