(x - y)(x

Multiply the x times x

X

Our you can do it up and down (see below).

X

x - y

------

- x

x

------

x

^{2}+ 5y - 6)Multiply the x times x

^{2}+ 5y -6 then multiply -y times it.X

^{3 }+ 5xy - 6x - x^{2}y - 5y^{2}+ 6yOur you can do it up and down (see below).

X

^{2}+ 5y - 6x - y

------

- x

^{2}y - 5y^{2 }+ 6yx

^{3}+ 5xy - 6x------

x

^{3}- x^{2}y + 5xy - 6x - 5y^{2}+ 6y