The difference between two binomials is written as the cubic power of polynomial 3A minus the quadratic power of 2Ab plus the quadratic power of 3A minus the cubic power of negative B If it's children's shoes with newspaper papers, please send out the answer of integral addition and subtraction (3), and you will be given a lot of money

The difference between two binomials is written as the cubic power of polynomial 3A minus the quadratic power of 2Ab plus the quadratic power of 3A minus the cubic power of negative B If it's children's shoes with newspaper papers, please send out the answer of integral addition and subtraction (3), and you will be given a lot of money

3a³-2ab²+3a²b-b³=3a³+3a²b-(2ab²+b³)=3a³-2ab²-(3a²b+b³)=3a³-b³-(2ab²-3a²b