-3(a-b)·a²(b-a)³
(a+b)²-3/2(a+b)-¼(a+b)²+(-2)³(a+b)
计算:3a³b²÷a²+b·(a²b-3ab-5a²b)
计算:(a-b)²(a-b)³(b-a)
计算:(a-b)(a-b)²(b-a)³
(b-a)(a-b)³(a-b)²等于多少
计算:(a-b)(b-a)²(a-b)³
[a+b]²-[a+b]³因式分解,
化简 (a+b)²+2a(a-1/2b)-3(a-b)(a+b)
计算代数式a-b+(a-2b)(a-b)+(a-2b)(a-b)²+(a-2b)(a-b)^3 当a=-3
[(a+2b)(a-2b)-(2a-b)²+(3a-b)(3a-5b)]÷2a
计算a^-2b³÷(a²b)^-3
因式分解a(a-b)+(b-a)²