(3a^2b)^2+8a^6b^3(-2a^2b) = -a^4b^2(4a^2b-3)(4a^2b+3)

1.（a-b)^2（b-a)^3(a-b)^-4 (a+2b)(2a+4b)(3a+6b)(4a+8b) 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, 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)}= 4(b-a)(a+b)-(2a-3b)(3a-2b)怎么计算 计算：((a+b)(a-b)-(a-b)^2+2b(a-b))/4(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 a-2b/a+2b=3,求2+2b/a-2b+3a-6b/4a+8b的值 (2a+b)(2a-b)-3a(4a-3b)+(4a-b)(2a-b) a=5分之3,b=3分之2