(-8a^3b^2)^2(-4a^2b^3)^3÷(-16a^7b^9)=?
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
3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=
1.(a-b)^2(b-a)^3(a-b)^-4
(a+2b)(2a+4b)(3a+6b)(4a+8b)
5(a+b)-3(a-b)=2 2(a+b)+5(a-b)=7
2b²+(a+b)(a-b)-(a-b)²,其中a=-3
a-b\a+b=1\2时,求代数式a+b\3(a-b) - a-b\2(a+b)
已知2a-b+1的绝对值+(3a+3/2b)^=0,求(b^/a+b)÷{[(b/a-b)+1][a-(a^/a+b)]
a+2b/2a-3b=3 求解4b+2a/9b-6a-4a-6b/3a+6b=?
当a+2b/2a-3b=3,求代数式4b+2a/9b-6a-4a-6b/3a+6b
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,