(-2a)*( )=6a^3-4a^2b+2a
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(-2a)*( )=6a^3-4a^2b+2a
(-2a)*( )=6a^3-4a^2b+2a
(-2a)*( )=6a^3-4a^2b+2a
(-2a)*( )=6a^3-4a^2b+2a
( )=(6a^3-4a^2b+2a)÷(-2a)=-3a²+2ab-1
(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=
(a-b)^6*[-4(b-a)^3]*(b-a)^2÷(a-b)=求过程
若a-b=4,3a+2b=6,3a(a-b)+2b(a-b)=( ).
化简多项式a-2a+3a-4a+5a-...+99a-100a用下面方法解决 a-(a+b)+(a+2b)-(a+3b)+...-(a+101b)解法1:a-2a+3a-4a+5a-..+99a-100a =(a+3a+5a+..+99a)+(-2a-4a-6a-...-100a)=2500a-2550a=-50a解法2:a-2a+3a-4a+5a-...+99a-100a=(a-2a)+(3a-4a)+(5a-6a)+..
对任意自然数a,b,规定a#b=2*a+b,若a#2a#3a#4a#5a#6a#7a#8a#9a=3039,则A=()
3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=
比较A=a^6+a^4+a^2+1与B=a^5+a^3+a的大小
计算;(a+3a+5a+...+2013a)-(2a+4b+6a+...+2012a)=?(会给好评)
因式分解:1、a*a*a*a+2a*a*a*b+3a*a*b*b+2a*b*b*b+b2、(a+1)(a+3)(a+4)(a+6)-280
2a-{7b+[4a-7b-(2a-6a-4b)]-3a
a+2b/2a-3b=3 求解4b+2a/9b-6a-4a-6b/3a+6b=?
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(a+2b)/(a-2b)+(3a-6b)/(4a+8b)的解,
对任意自然数a,b,规定a#b=2*a+b,若a#2a#3a#4a#5a#6a#7a#8a#9a=2026
已知4a^2+4a+b^2-6a+10=0,求a^3b-b^3a
已知4a^2+4a+b^2-6a+10=0求a^3b-b^3a
2a(a-b)+4a(2a+3b)