a^3*b^6-a^3*b^9

A-B A+B 2B+A 3A-B 6A+2B 先化简,再求值：(2a-b)^2-(2a+b)(a-b)-3(a-3b)(a+3b),其中|a-1|+b^2=6b-9 (a^2+1)(-4a^2+1)+a^4-1 3a(a-b)(a+b)-6(b-a)^2a^2-9(a-b)^2= 3a(a-b)(a+b)-6(b-a)^2= 9(a-b)(a+b)-3(a-b)^2 因式分解:3b(b-a)+6a(a-b)^2 (a+3b)(a*a-3ab+9b*b)-(a-3b)(a*a+3ab+9b*b) (3a-2b)(9+6b) 因式分解(a+b)^3-9(a+b) -3a>-6b,则a( )b (3a-6b)/(a+b) - (5a-6b)/(a-b) - (4a-5b)/(a+b) - (7a-8b)/(a-b) 快 (3a-6b/a+b）-(5a-6b/a-b)-(4a-5b/a+b)-(7a-8b/b-a) 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/2a-3b=3 求解4b+2a/9b-6a-4a-6b/3a+6b=? 计算(3a-2b)(9a*a+6ab+4b*b)-(3a+2b)(9a*a-6ab+4b*b) 因式分解：9(a+b)(a+b)+6(a-b)(a+b)+(a-b)(a-b) (a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b) 3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=