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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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