化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
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化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)化简,:3(m-1)^2+(m+2)(m
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
原式=3(m^2-2m+1)+(m^3+8)-(m^3+3m^2-3m)
=3m^2-6m+3+m^3+8-m^3-3m^2+3m
=11-3m
已知m＞4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3)
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
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(1/m^2-3m)+(1/m^2-9m+18)+(1/m^2-15m+54)化简：(1/m^2-3m)+(1/m^2-9m+18)+(1/m^2-15m+54)
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化简3(m+1)^2-5(m-1)(m+1)+2m(m-1),其中m=3