Question

tell my answer fast ​

Answer 1

Answer:

$(9 {x}^{2} - 2xy)(5x {y}^{2} + 3y) \\ = (9{x}^{2}(5x {y }^{2} + 3y) + ( - 2xy((5x {y}^{2} + 3y))) \\ = 45{x}^{3} {y}^{2} + 27{x}^{2}y - 10 {x}^{2} {y}^{3} - 6x {y}^{2 }$