已知x^2+mx+n=(x-2)(x-3)
1:求m,n的值2:求m(2m-3n)(2m+3n)-(m-3n)(m^2+9n^2)-(2m^2-n^2)(m+2n)...
1:求m,n的值
2:求m(2m-3n)(2m+3n)-(m-3n)(m^2+9n^2)-(2m^2-n^2)(m+2n) 展开
2:求m(2m-3n)(2m+3n)-(m-3n)(m^2+9n^2)-(2m^2-n^2)(m+2n) 展开
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