(-2a^2b^3)^4+(-a)^8*(2b^4)^3
(a+2b)(2a+4b)(3a+6b)(4a+8b)
1.(a-b)^2(b-a)^3(a-b)^-4
如果a-2b/a+2b=3,求a+2b/a-2b+3a-6b/4a+8b
(a-2b)/(a+2b)=3,求(a+2b)/(a-2b)+(3a-6b)/(4a+8b)的解,
4(b-a)(a+b)-(2a-3b)(3a-2b)怎么计算
3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=
a-2b/a+2b=3,求2+2b/a-2b+3a-6b/4a+8b的值
2a-[-3b+4a-(3a-b)
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
0 a a+b 2a+b 2a+2b 3a+2b 3a+3b 4a+3b 4a+4b 5a+4b 5a+5b …… 求一
计算2a+b+b^2/2a-b-8a^3/4a^2-b^2
[8(a+b)^6+4(a+b)^4+(-a-b)^3]÷[2(a+b)^3].