(-3x) * (5 y)
(5x) * (y^2)
(5x^3) * (3x^3)
x.x.y
(6x) * (4 x^2 y)
( - 10 xy) * ( - 2 xy)
( 3 x ) * ( 3 x )
15 x^6
5xy^2
24 x^3 y
20 x^2 y^2
- 15 xy
9x^2
x^2.y
