Subtract the second polynomial from the first:
`2ab^2 +3a^2 b -4ab`, `3ab-8ab^2 +2a^2 b`.

Subtract the second polynomial from the first: 2ab^2+3a^2b-4ab,3ab-8ab^2+2a^2b

Subtract the second polynomial frim the first: 2a+3a^2-7,3a^2-12+2a

Subtract the second polynomial from the first: 2x^2+3x+5,x^2-2x+3

Subtract the second polynomial from the first: 2x62 +3x+5 , x^2 -2x+3

Subtract the second polynomial frim the first: n^3-5n^2+6,n^3-3n+8

Subtract the second polynomial form the first: 5x^2 -6xy +2 , x^2 +10xy -8 .

Subtract the second polynomial form the first: 8x^2 +4y^2 -6y+8 , x^2 -5y^2 +2xy +3y -8

Subtract the second polynomial from the first and write the degree of the polynomials so obtained : y^3 + 2y^2 + 3y + 4 , y^3 + 3y^2 + y - 5

Subtract the second polynomial from the first and write the degree of the polynomials so obtained : y^3 - 3y^2 + 2y + 5 , y^3 + 2y + 4