[(i),-5xy" from "12xy],[.(ii),2a^(2)," from "-7a^(2)]

Subtract: (i) -8xy from 7xy (ii) x^(2) from -3x^(2) (iii) (x - y) from (4y - 5x) (iv) (a^(2) + b^(2) - 2ab) from (a^(2) + b^(2) + 2ab) (v) (x^(2) - y^(2)) from (2x^(2) - 3y^(2) + 6xy) (vi) (x -y + 3z) from (2z - x - 3y)

Subtract: -5xy from 12 x y

Subtract: (i) 5x from 2x (ii) -xy from 6xy (iii) 3a from 5b (iv) -7 x from 9y (v) 10x^(2) from -7x^(2) (vi) a^(2) - b^(2) from b^(2) - a^(2)

Subtract : (i) -5y^2 from y^2 (ii) 6xy from (iii) (a-b) from (a+b)

Subtract: (i) -5y^(2) from y^(2) (ii) 6xy from (iii) (a-b) from (a+b)

Subtract - 7xy " from " - 2xy

Subtract : 4xy^(2) from 3xy^(2)

Subtract: -8xy from 7xy

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