3(m^2-mn+2n^2)-2(mn-m^2+n^2)+(5mn-4n^2+1)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 10:35:10
3(m^2-mn+2n^2)-2(mn-m^2+n^2)+(5mn-4n^2+1)
3(m^2-mn+2n^2)-2(mn-m^2+n^2)+(5mn-4n^2+1)
3(m^2-mn+2n^2)-2(mn-m^2+n^2)+(5mn-4n^2+1)
原式=3m^2-3mn+6n^2-2mn+2m^2-2n^2+5mn-4n^2+1
=5m^2+1
2mn[(2mn)^2-3n(mn+m^2*n)-mn^2]计算
2mn[(2mn)²-3n(mn+m²n)-mn²
已知m+n=3,mn=2/3,求mn-mn+mn的值
(5mn-2m+3n)+(-7m-7mn)
(5mn-2m+3n)+(-7m-7mn)
急2[mn+(-3m)]-3(2n-mn),m+n=2 mn=-3
3(m^2n+mn)-4(mn-2m^2n)+mn.要有过程
已知m-n=2,mn=1,求多项式(-2mn+2mn+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m-n=2,mn=1,求多项式(-2mn+2mn+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知MN^2=-6,求-MN(M^2N^5-MN^3-N)的值
3(m^2+mn)-4(mn-2m^2n)+mn
已知mn/m+n=2求3m-5mn+3n/-m+3mn-n
已知M+N分之MN=2,求-m+3mn-n分之3m-5mn+3n
已知mn/m+n=2,求3m-5mn+3n/(-m)+3mn-n
已知mn/m+n=2,求3m-5mn+3n/-m+3mn-n的值
计算(-2mn)^3(mn+1/2)(m^2n^2-1/2mn+1/4)
m-n=7 mn=-5求(3m+5n+4mn)-(2n-4n+6mn)
1/M+1/N=5 (3M+MN+2N) / (M-MN=3N)