(3m+2n)(7m-6n)
计算(3m+2n)(7m-6n)
(3m+2n)(7m-6n)
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
3(m-n)²-7(m-n)-3(m-n)²+6(m-n)
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)
计算1/(m-n)-1/(m+n)-2n/(m^2+n^2)-4n^3/(m^4+n^4)-8n^7/(m^8+n^8)
m-{n-2m+[3m-(6m+3n)+5n]}=
m-{n-2m+[3m-(6m+3n)-5n]}化简