a^3-5ab-66ab^2 x^5-13x^3y^2+36xy^4 m^2-4n^2-2m-4n 3a^3-3ab^2+6a^2b-3ab^2 x^2-3xy-4y^2-2x-2y 急明天就要交的
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![a^3-5ab-66ab^2 x^5-13x^3y^2+36xy^4 m^2-4n^2-2m-4n 3a^3-3ab^2+6a^2b-3ab^2 x^2-3xy-4y^2-2x-2y 急明天就要交的](/uploads/image/z/3792576-48-6.jpg?t=a%5E3-5ab-66ab%5E2+x%5E5-13x%5E3y%5E2%2B36xy%5E4+m%5E2-4n%5E2-2m-4n+3a%5E3-3ab%5E2%2B6a%5E2b-3ab%5E2+x%5E2-3xy-4y%5E2-2x-2y+%E6%80%A5%E6%98%8E%E5%A4%A9%E5%B0%B1%E8%A6%81%E4%BA%A4%E7%9A%84)
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a^3-5ab-66ab^2 x^5-13x^3y^2+36xy^4 m^2-4n^2-2m-4n 3a^3-3ab^2+6a^2b-3ab^2 x^2-3xy-4y^2-2x-2y 急明天就要交的
a^3-5ab-66ab^2 x^5-13x^3y^2+36xy^4 m^2-4n^2-2m-4n 3a^3-3ab^2+6a^2b-3ab^2 x^2-3xy-4y^2-2x-2y 急
明天就要交的
a^3-5ab-66ab^2 x^5-13x^3y^2+36xy^4 m^2-4n^2-2m-4n 3a^3-3ab^2+6a^2b-3ab^2 x^2-3xy-4y^2-2x-2y 急明天就要交的
a³-5a²b-66ab² -5ab应该是-5a²b吧.
=a(a²-5ab-66b²)
=a(a-11b)(a+5b)
x^5-13x^3y^2+36xy^4
=x(x⁴-13x²y²+36y⁴)
=x(x²-4y²)(x²-9y²)
=x(x+2y)(x-2y)(x+3y)(x-3y)
m²-4n²-2m-4n
=(m+2n)(m-2n)-2(m+2n)
=(m+2n)(m-2n-2)
3a^3-3ab²+6a^2b-3ab^2
=3a(a²-b²+2ab-b²)
=3a(a²+2ab+b²-3b²)
=3a[(a+b)²-3b²]
=3a[a+(1+√3)b][a+(1-√3)b] 这题怀疑抄错了.
x^2-3xy-4y^2-2x-2y
=(x-4y)(x+y)-2(x+y)
=(x+y)(x-4y-2)
(1)(-ab+2)(5ab-3)-ab(1-ab) (2)(-2x)·(x^2-5x+6)-4x(2x^2-3x+1)
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
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已知(a-2)+(b+1)=0,求多项式3ab+ab-3ab+5ab+ab+2分之1ab
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化简.(-3) x 2ab + 5ab x 6
计算5ab^3*(-3/4a^3b^2)*(-2/3ab^4c)^3 x(x-1)(x+3)-x^2(x+1)+3x-1
5ab-2[3ab-(4ab²+2分之1ab)]-5ab²
很简单的单乘单项式的计算(x-2y)(x+4y) (ab+7)(ab-3) n(n+2)(2n+1) (1-3x)(1+2x)-3x(2x-1)3ab[6ab-3(6ab-3(ab-1/3a^2b)] 3xy(x-2xy-xy^2z)(5ab-2)(-3a^2b) (5ab-2)(-3a^2b)
化简(或求值)(1).7xy-3x^2+2y^2-4xy +4x^2-3y^2(2).(5a^2-2ab)-2(3a2+4ab-二分之一b^2)(3).2x-(3x-二分之x-2)+[5x-二分之3(x-2)](4).8ab-4a^2b^2-8ab^2+2ab-2ab^2+4a^2b^2,(其中ab-ab^2=-2)
化简(或求值)(1).7xy-3x^2+2y^2-4xy +4x^2-3y^2(2).(5a^2-2ab)-2(3a2+4ab-二分之一b^2)(3).2x-(3x-二分之x-2)+[5x-二分之3(x-2)](4).8ab-4a^2b^2-8ab^2+2ab-2ab^2+4a^2b^2,(其中ab-ab^2=-2)
已知ab^2=-1,求-ab(a^2b^5-ab^3-b)的值
[(3ab)平方-(2ab-1)(2ab+1)-1】/(-ab)其中a=2/3 b=-6/5
化简:(-3ab)(-5ab)+2/3ab的二次方(7/3ab-2a)
合并同类项5a²b-3ab-4ab²+7ab-2ab²
5ab平方-{2a平方b-[3ab平方-(4ab平方-2ab平方)]},其中ab满足|a-2|+(b+1)平方=0
要求,(-x+2x^2+5)+(4x^2-3-6x)= (3a^2-ab+7)-(-4ab^2+2ab+7)