=C0a^5+C1a^4b+C2a^3b^2+C3a^2b^3+C4ab^4+C5b^5 {底数为5}
=a^5+5a^4b+10a^3b^2+10a^2b^3+5ab^4+b^5
匿名回答于2023-10-12 17:02:11
