m²(x-y)+n²(y-x)(x+y)²-4(x²-y²)+4(x-y)²4(1+2x-3y)+(3y-2x)²2乘以a的n+1次方减去12乘以a的n次方+18乘以a的n-1次方

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m²(x-y)+n²(y-x)(x+y)²-4(x²-y²)+4(x-y)²4(1+2x-3y)+(3y-2x)²2乘以a的n+1次方减去12乘以a的n次方+18乘以a的n-1次方
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m²(x-y)+n²(y-x)(x+y)²-4(x²-y²)+4(x-y)²4(1+2x-3y)+(3y-2x)²2乘以a的n+1次方减去12乘以a的n次方+18乘以a的n-1次方
m²(x-y)+n²(y-x)
(x+y)²-4(x²-y²)+4(x-y)²
4(1+2x-3y)+(3y-2x)²
2乘以a的n+1次方减去12乘以a的n次方+18乘以a的n-1次方

m²(x-y)+n²(y-x)(x+y)²-4(x²-y²)+4(x-y)²4(1+2x-3y)+(3y-2x)²2乘以a的n+1次方减去12乘以a的n次方+18乘以a的n-1次方
(m-n)(m+n)(x-y)
(x-4y)(x-2y)
(3y-2x-2)平方
2乘以a的n-1次方乘以(a-3)的平方

(x-y)(m+n)(m-n)
)

(m-n)(m+n)(x-y)
(x-4y)(x-2y)
(3y-2x-2)平方
2乘以a的n-1次方乘以(a-3)的平方

原式=(m+n)(m-n)(x-y)
原式=[(x+y)-2(x-y)]^2
=(x-5y)^2
原式=(2x-3y)^2+4(2x-3y)+4
=(2x-3y+2)^2
2a^(n+1) -12a^n+18a^(n-1)
=2a^(n-1)(a-3)^2

mx²-ym²+yn²-xn²
x²+2xy+y²-4x²+4y²+4(x²+2xy+y²)
=x²+2xy+y²-4x²+4y²+4x²+8xy+4y²
=x²+12xy+9y²
4+8x-12y+9y²-12xy+4x²

m²(x-y)+n²(y-x)
=(m²-n²)(x-y)
(x+y)²-4(x²-y²)+4(x-y)² 完全平方
=(x+y-2)²
4(1+2x-3y)+(3y-2x)²
=4+4(-2x+3y)+(3y-2x)² 完全平方

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m²(x-y)+n²(y-x)
=(m²-n²)(x-y)
(x+y)²-4(x²-y²)+4(x-y)² 完全平方
=(x+y-2)²
4(1+2x-3y)+(3y-2x)²
=4+4(-2x+3y)+(3y-2x)² 完全平方
=(3y-2x+2)²
2*a∧(n+1)-a∧n+18*a∧(n-1)
=2*(a∧n*n)-a∧n+18*(a∧n/n)
=2*a∧n*2n-a∧n+18*a∧n/18n
=a∧n(4n-1+1/n)

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1.y²-5xy-6x² 2.m²-3mn+2n² (x+y)²-10(x+y)+25 4m²-9n²-4m+1 一道因式分解x²-(m²+n²)x+mn(m²-n²) 1.5a(m-n)-10a(m-n)2.(x+y)²(x-y)+(x+y)(x-y)²3.x²y²-0.044.-m²+1/165.9a²-12a+46.4x²+20xy+25y²7.x²+7x+128.x²-4xy-96y² a²-ab+ac-bc2ax-10ay+5by-bx3ax+4by+4ay+3bxm²+5m-mn-5nx²-y²+ax+aya²-2ab+b²-c²x³+x²y-xy²-y³4a²-b²+6a-3b9m²-6m+2n-n²x²-y²-z²+2yzx³-x²y-xy²+y³ 下列各式不能用平方差公式进行因式分解的是( )A、-a²+b² B、9x²y²-a² C、-y²-x² D、4m²-25n²(只写选项) 初二下学期分解因式[数学]1.a(x-y)-b(y-x)+c(x-y)2.x(m+n)-y(n+m)+(m+n)3.(x+y)²-16(x-y)²4.a²(a-b)²-b²(a+b)²5.(x+y+z)²-(x-y-z)²6.x²y-2xy²+y³7.16-(2a+3b)²8.(a²+4)²-16a²9. (a-b)²-(a-b)-2(a+b)²+(a+b)-6x²+6xy+8y²m²+2mn-15n² 分解因式x²+14x+49 (m+n)²-6(m+n)+9 -x²-4y²+4xy -2xy-x²-y² 3ax²(a+b)²-12(a+b)+36 (x+y)²-4(x+y-1) 1-m²-n²+2mn要过程 是作业 急啊! (1) (m—n)²—n² (2)49(a-b)²—16(a+b)²(3) (2x+y)²—(x+2y)² (4) (x²+y²)²—x²y²(5)3ax²—3ay² ①-a(-a-b)²+a(b-2a)² 分解因式、② (m²-2m)²n+2n(m²-2m)+n ③(x²+y² 因式分解 x(x-y)-y(y-x) m²(x-1)+4(1-x) a²-4(a-b)² (2x-3y)²-4x² (3x+y)²9(a-b)²-16(a+b)²49(m-n)²-9(m+n)² 分解因式计算1.a²(a-b)+b²(b-a)2.16(x+y)²-25(x-y)²3.3a²b-1/3b³4.(5m²+3n²)-(3m²+5n²)²正确的4.(5m²+3n²)²-(3m²+5n²)² 求一个数是16的一组勾股数可以利用这个条件:x²+y²=z²,x=m²-n²,y=2mn,z=m²+n² 1.把下列各式分解因式(1)9(m+n)²-4(2m-n)²(2)25(x-y)²-(x+y)² 已知,单项式M,N满足2x(M+3x)=6x²y²+N,求M,N 分解因式计算1.m(m-n)²+n(n-m)²2.2a(x-y)-3b(y-x)3.2010²-2010²4.204²+204×192+96²1.m(m-n)²+n(n-m)²2.2a(x-y)-3b(y-x)3.2012²-2010²4.204²+204×192+96²5.2a(x 几道分解因式的题,2X²-4X= 8m²n+2mn=a²x²y-axy²=-2x²/12xy²+8xy³=9(m+n)²-(m-n)²=2x³-8x=x²+14x+49=3ax²+6axy+3ay²=-2x²/12xy²+8xy³=输入错误,应该是-2x²