m^6+n^6+2m^3n^3
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
计算(m+4n)(m-n)-6(m+2n)(m-3n)
(m+4n)(m-n)-6(m+2n)(m-3n),
(m-5n)(m-n)-6(m+2n)(m-3n)
(m+4n)(m-n)-6(m+2n)(m-3n)
3m(m+n)-6(m^2-n^2)
m-{n-2m+[3m-(6m+3n)+5n]}=
m-{n-2m+[3m-(6m+3n)-5n]}化简
m方-【5m+3n】【5m-3n】+6【2m-n】【m+2n】等于多少
(m+n)²-6(m+n)+9=(m+n)²+2(m+n)×(-3)+(-3)²=[(m+
3(m-n)²-7(m-n)-3(m-n)²+6(m-n)
集合M={m|m=3^n+6n-1,n∈N+,且m