Answer:
8x^2 - 15y^2 + xy
( ^ used for exponent)
Step-by-step explanation:
FOIL (4x+5) (2x-3y) + 3xy
(8x^2 - 12xy + 10xy - 15y^2) +3xy
Combine like terms
(8x^2 - 15y^2 - 2xy) + 3xy
