(m 1 )(m -9) 8m因式分解
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提取公因式原式=m(m-2)
x1=@sqrt((m-m1)*(m-m1)+k*k*m*m-2*(m-m1)*k*m*@sin(a))-(m1-m*(1-k));
4(m+n)方-9(m-n)方=[2(m+n)]^2-[3(m-n)]^2=[2(m+n)+3(m-n)][2(m+n)-3(m-n)]=(5m-n)(-m+5n)
9m^2-n^2+3m-n=(3m+n)(3m-n)+(3m-n)=(3m-n)(3m+n+1)
好像不能分解啊.你再看看,是不是哪个符号输错啦.
mn²+m=m(n²+1)
9m²-6m+2n-n²=9m²-n²-6m+2n=(3m-n)(3m+n)-2(3m-n)=(3m-n)(3m+n-2)
-m^2/9-1+2m/3=-1/9·(m²-6m+9)=-1/9·(m-3)²
=2*4mmn+2mn=2*2*2mmn+2mn=2m*2*2mn+2mn=4m*2mn+2mn=(4m+1)2mn
9(m+1)²-(m-1)²=[3(m+1)+(m-1)][3(m+1)-(m-1)]=(3m-3+m-1)(3m+3-m+1)=(4m-4)(2m+4)=8(m-1)(m+2)
-9(m-n)^2+(m+n)^2=(m+n)^2-(3m-3n)^2=[(m+n)+(3m-3n)][(m+n)-(3m-3n)]=(4m-2n)(4n-2m)=4(2m-n)(2n-m)
先给好平,老是被骗再问:��������再问:����再答:�����再问:������Ҵ
m+m²-2m³=m(1+m-2m²)=-m(2m²-m-1)=-m(m-1)(2m+1)很高兴为您解答,【the1900】团队为您答题.请点击下面的【选为满意
6a(m-n)²-8(n-m)³=6a(m-n)²+8(m-n)³=2(m-n)²(3a+4m-4n)
m^3-2m^2-4m+8=m^3-4m-2m^2+8=m(m^2-4)-2(m^2-4)=(m-2)(m^2-4)=(m-2)(m-2)(m+2)=(m-2)^2(m+2)
2(3m+n)²-8=2[(3m+n)²-4]=2[(3m+n)²-2²]=2(3m+n+2)(3m+n-2)
(m-3)(m+2)祝好!
m³-2m²-4m+8=m²(m-2)-4(m-2)=(m-2)(m²-4)=(m+2)(m-2)²x²-2xy+y²-9=(x-
原式=1╱2(16-m平方)=1╱2(4+m)(4-m)
(m+n-3)^2