Subtract $x^2-22xy+5y^2-4$ from $4xy-5x^2-y^2+6$

Subtract: $x^2-3xy+7y^2-2$ from $6xy-4x^2-y^2+5$

Subtract
$-4x^{2}y-y^3\text{from}{x}^3+3x{y}^2-x^{2}y$.

Subtract: $x^2-3xy+7y^2-2$ from $6xy-4x^2-y^2+5$

Subtract $5x^2-3xy+2y^2\text{from}7x^2-5xy-8y^2$.

Subtract $(x^2-y^2)$ from $(2x^2-3y^2+6xy)$

Subtract :
$6x^2-4xy+5y^2$ from $8y^2+6xy-3x^2$

Subtract $6xy-4x^2-y^2-2$ from $x^2-3xy+7y^2+5$

Subtract $5x^2-4y^2+6y-3$ from $7x^2-4xy+8y^2+5x-3y$.

Subtract $5xy-4x^2+3y^2$ from $3x^2-5y^2-4xy$

Subtract: $13x^2-2y^2+5xy$ from $3x^2+4x{y}^4-8y^2$ hosizontally.