计算(3a^2+2/1b)(3a^2-2/1b)(9a^4+4/1b^2)
计算(a^3-4a^2b-a+4ab^2)/a(a-2b+1)
1:计算2(a+b)^2/(a+b)-3(a+b)/(a+b).
计算a^-2b^-3*(-3a^-1b^2)÷6a^-4b^-2
计算:(b/a)^2÷(a/b)-b^3/a^3(a-b) ÷ 1/a-b
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
4(b-a)(a+b)-(2a-3b)(3a-2b)怎么计算
计算(3a^2+2/1b)(3a^2-2/1b)(9a^4+4/1b^2)
计算(3a^2+1/2b)(3a^2+1/2b)(9a^4-1/4b^2)
计算1/(a-b)+1/(a+b)+2a/(a^2+b^2)+4a^3/(a^4+b^4)=
计算:[(a-b)(a+b)]^2-(a^2+ab+b^2)(a^2-ab+b^2)+(4a^2b^2)(b-1)(b+
计算a^2-b^2/a+b-4a(a-b)+b^2/2a-b
A=B+B+B+B+B+B+B+B+B+B+B+B+B+B+B A-B×3=C C+2×7+2=1