Subtract: `6x^3-7x^2+5x-3` from `4-5x+6x^2-8x^3` `x^3+2x^2y+6x y^2-y^3` from `y^3-3x y^2-4x^2y`

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

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

Subtract -4x^2y-y^3 " from " x^3 +3xy^2-x^2y .

Subtract x^3y^2+3x^2y^3-7xy^3 " from " x^4+y^4+3x^2y^2-xy^3 .

Subtract: 7x^(4)-5x^(3)+4x^(2)+3x-3 from 6x^(4)-4x^(3)-8x^(2)-2x+7

Subtract x^4+3x^3y^3+5y^4 " from " 2x^4-x^3y^3+7y^4 .

Subtract 5x^(2)-4y^(2)+6y-3 from 7x^(2)-4xy+8y^(2)+5x-3y

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)