h. \( (3 x y-5)(5 x+y) \)

Did you know that polynomial multiplication, like the expression \( (3xy - 5)(5x + y) \), follows the distributive property, also known as the FOIL method for binomials? It’s a fun way to combine terms, ensuring you multiply every term in the first polynomial by every term in the second. So, you’ll get \( 3xy \cdot 5x + 3xy \cdot y - 5 \cdot 5x - 5 \cdot y \), which beautifully combines terms for the final expression! As you tackle such expressions, be on the lookout for common mistakes like forgetting to multiply all terms or accidentally dropping a minus sign. It’s easy to get caught up in calculations, so take a moment to double-check each term. A handy tip is to write down each product systematically to visualize the combination clearly and avoid unnecessary errors. Keep practicing, and it'll become second nature!