Remove the brackets and expand the expression: $xy\left(x-y\right)$

Remove the brackets and expand the expression: $3y\left(4x+2\right)$

Remove the brackets and expand the expression: $2xy\left(9-4y\right)$

Remove the brackets and expand the expression: $2x^2\left(3-2y\right)$

Remove the brackets and expand the expression: $3x^2\left(4-4x\right)$

Remove the brackets and expand the expression: $4x\left(9-2y\right)$

Remove the brackets and expand the expression: $5y\left(2-x\right)$

Remove the brackets and expand the expression: $3x\left(4-y\right)$

Remove the brackets and expand the expression: $2x^{2}y\left(y-2x\right)$