3m^2 n^2+12mn+12+x(mn+2)^2
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3m^2n^2+12mn+12+x(mn+2)^23m^2n^2+12mn+12+x(mn+2)^23m^2n^2+12mn+12+x(mn+2)^2=3(m^2n^2+4mn+4)+x(mn+2)^
3m^2 n^2+12mn+12+x(mn+2)^2
3m^2 n^2+12mn+12+x(mn+2)^2
3m^2 n^2+12mn+12+x(mn+2)^2
=3(m^2n^2+4mn+4)+x(mn+2)^2
=3(mn+2)^2+x(mn+2)^2
=(x+3)(mn+2)^2
3m^2 n^2+12mn+12+x(mn+2)^2
3m^2n^2+12mn+x(mn+2)^2因式分解.同上.
3m^2n^2+12mn+x(mn+2)^2
3m平方n平方+12mn+x(mn+2)平方
因式分解 3m^2n-12mn+12n
3m^2n-12mn+12n
m+n=3 mn=-2 求5m-3mn-7n+12mn-7m+5n的值 急~~~
(5mn-2m+3n)+(-7m-7mn)
(5mn-2m+3n)+(-7m-7mn)
已知实数m,n,且m>n>0,m²+n²=4mn,则m²﹣n²/mn的值等于∵(m+n)²=m²+2mn+n²,(m-n)²=m²-2mn+n²,m²+n²=4mn.(m+n)²=6mn(m-n)²=2mn(m+n)²(m-n)²=12m²n²mm³-2m
分解因式 3m²n²+12mn+12+x(mn+2)²麻烦各位帮个忙啦.
m^2-mn=20,mn-n^2=-12 m^2-n与-2mn+n^2
-3m^2+9mn+12n^2十字相乘
m=-4,n=-12,求(m+n)(m^2-mn+n^2)的值
已知m^2+n^2=3,mn=-1,求多项式5m^2-3mn+12mn-7m^2+5n^2的值.
已知m^2-mn=20,mn-n^2=-12,求代数式m^2-n^3的值
已知m+n=12 ,mn=3,那么m^2-mn+n^2=?我算135
分解因式:-4m^2n^3+12m^3n^2-2mn