计算:(a-3b)^2+(3a+b)^2-(a+5b)^2+(a-5b)^2
计算:(b-a)^5(a-b)^m+(a-b)^(m+3)(b-a)^2
计算:(a-b)^m+3(b-a)^2(a-b)^m(b-a)^5
计算(3a+2b)(3a-2b)-(a+2b)(5a-2b)/a-2b
计算:(a-b)^(m)*(a-b)^(2)*[2(b-a)]^3*[(b-a)^(5)]^(2)/(a-b)^(m).
计算(a-b)^m(a-b)[2(b-a)]^3[(b-a)^5]^2÷(a-b)^m=
计算a+(a-b)+(a-2b)+(a-3b)+.+(a+99b)
计算a+[a+b]+[a+2b]+[a+3b]+...+[a+99b]
计算:a+(a+b)+(a+2b)+(a+3b)+……+(a+99b)
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
计算·[(2a+-b)/(a+b)-b/(a+b)]/(a-2b)/(a+b)
(5a-2b)的平方-2(5a-4b)(3a-2b) 计算
计算:(5a-4b)^2-2(5a-4b)(3a-2b)