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

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 6xy - 4x^(2) - y^(2) - 2 from x^(2) - 3xy + 7y^(2) + 5

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

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

Subtract 3x+2y-z from 4x-5y+3z

Subtract: (i) 5a + 7b - 2c from 3a - 7b + 4c (ii) a - 2b - 3c from -2a + 5b - 4c (iii) 5x^(2) - 3xy + y^(2) from 7x^(2) - 2xy - 4y^(2) (iv) 6x^(3) - 7x^(2) + 5x - 3 from 4 - 5x + 6x^(2) - 8x^(3) (v) x^(3) + 2x^(2) y + 6xy^(2) - y^(3) from y^(3) - 3xy^(2) - 4x^(2) (vi) -11 x^(2) y^(2) + 7xy - 6 from 9x^(2) y^(2) - 6xy + 9 (vii) -2a + b + 6d from 5a - 2b - 3c