4a^2b-a^2b^3怎么做?另外还有3x^2-3x^3y^2-4x27x^2-18x+325a^2-10(a-b)+11/2x^2+xy+1/2y^2-x3y+xy^3-3x^7+24x^5-48x^3(a+b)^2-4(a+b-1)4x^2-25共十一道,100悬赏,

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4a^2b-a^2b^3怎么做?另外还有3x^2-3x^3y^2-4x27x^2-18x+325a^2-10(a-b)+11/2x^2+xy+1/2y^2-x3y+xy^3-3x^7+24x^5-48x^3(a+b)^2-4(a+b-1)4x^2-25共十一道,100悬赏,
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4a^2b-a^2b^3怎么做?另外还有3x^2-3x^3y^2-4x27x^2-18x+325a^2-10(a-b)+11/2x^2+xy+1/2y^2-x3y+xy^3-3x^7+24x^5-48x^3(a+b)^2-4(a+b-1)4x^2-25共十一道,100悬赏,
4a^2b-a^2b^3怎么做?
另外还有3x^2-3
x^3y^2-4x
27x^2-18x+3
25a^2-10(a-b)+1
1/2x^2+xy+1/2y^2
-x3y+xy^3
-3x^7+24x^5-48x^3
(a+b)^2-4(a+b-1)
4x^2-25共十一道,100悬赏,

4a^2b-a^2b^3怎么做?另外还有3x^2-3x^3y^2-4x27x^2-18x+325a^2-10(a-b)+11/2x^2+xy+1/2y^2-x3y+xy^3-3x^7+24x^5-48x^3(a+b)^2-4(a+b-1)4x^2-25共十一道,100悬赏,
有公因式先提公因式
记住平方公式+平方差公式
4a^2b-a^2b^3
=a^2b(4-b^2)
=a^2b(2^2-b^2)
=a^2b(2-b)(2+b)
-----------------------------
3x^2-3=3(x^2-1)=3(x-1)(x+1)
--------------------------------------
x^3y^2-4x
=x(x^2y^2-4)
=x[(xy)^2-2^2]
=x(xy-2)(xy+2)
----------------------------------------------
27x^2-18x+3
=3(9x^2-6x+1)
=3[(3x)^2-2*3x*1+1^2]
=3(3x-1)^2
------------------------------------------------
25a^2-10(a-b)+1题目不对吧?
-----------------------------------------------
1/2x^2+xy+1/2y^2
=(1/2)[x^2+2xy+y^2]
=(1/2)(x+y)^2
----------------------------------------------
-x3y+xy^3=xy(y^2-x^2)=xy(y-x)(y+x)
----------------------------------------------
-3x^7+24x^5-48x^3
=-3x^3(x^4-8x^2+16)
把x^2看成未知数
=-3x^3(x^2-4)^2
=-3x^3(x-2)^2(x+2)^2
----------------------------------------------
(a+b)^2-4(a+b-1)
=(a+b)^2-4(a+b)+4
=(a+b-2)^2
----------------------------------------------
4x^2-25
=(2x)^2-5^2
=(2x-5)(2x+5)

(a+b)(a^2+b^2)(a-b)怎么做 4a^2b-a^2b^3怎么做?另外还有3x^2-3x^3y^2-4x27x^2-18x+325a^2-10(a-b)+11/2x^2+xy+1/2y^2-x3y+xy^3-3x^7+24x^5-48x^3(a+b)^2-4(a+b-1)4x^2-25共十一道,100悬赏, 关于绝对值的性质1)｜a+b｜=｜a｜+｜b｜； (2)｜ab｜=｜a｜｜b｜；(3)｜a-b｜=｜b-a｜； (4)若｜a｜=b,则a=b； (5)若｜a｜＜｜b｜,则a＜b； (6)若a＞b,则｜a｜＞｜b｜．怎么理解另外绝对值的性质1怎么 (a-b)^m*(a-b)*[2(b-a)^3*(b-a)^5]^2/(a-b)^m怎么做? (2a+b)(2a-3b)-3a(2a+b)怎么做? (2a+b)(2a+3b)-3a(2a+b)怎么做? |2a|-|a+c|-|1-b|+|-a-b|怎么做? 3a^3b^2/a^2+b*(a^2b-3ab-5a^b)怎么做?现在就要! (2a-3b)(3a-4b),怎么做啊? (3a+2b)²-(3a-4b)²怎么做? (-a-2b)(a+2b)这道题怎么做? （a-2b+3c/a+b-c-)-( a-b+c/a-c+b)( +2c-b/c-a-b)怎么做初2的题 （a-b+c)^2怎么做? （x+y)*(a+2b)怎么做 (2x+5)(5-2x)怎么做?另外还有(a-3)(a^2+9)(a+3)、(x+6)^2-(x-6)^2一共三道题, 4(b-a)(a+b)-(2a-3b)(3a-2b)怎么计算 [(a+b)^-3(a-b)^5/(a-b)^-2(a+b)^4]^2怎么写 5(a-b)-4(a+b)-3(a-b)+2(a+b)怎么算?