Is this correct now after i revised it

Multiply. 3xy^2(5xy-4x+6y)

3xy^2(5xy)=15x^2y^3
3xy^2(-4x)=-12x^2y^2
3xy^2(6y)=18xy^3

so i get from this

15x^2y^3-12x^2y^2+18xy^3

correct

awsome i just thought that the 15x^2y^3-12x^2y^2 should be combine...