7(m^3-m-1)-3(m^3+m) 2x^5(-x)^2-(-x^2)^3(-7x) (x+1)(x-1)(x^2+1)
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7(m^3-m-1)-3(m^3+m) 2x^5(-x)^2-(-x^2)^3(-7x) (x+1)(x-1)(x^2+1)
7(m^3-m-1)-3(m^3+m) 2x^5(-x)^2-(-x^2)^3(-7x) (x+1)(x-1)(x^2+1)
7(m^3-m-1)-3(m^3+m) 2x^5(-x)^2-(-x^2)^3(-7x) (x+1)(x-1)(x^2+1)
7(m^3-m-1)-3(m^3+m)
=7m³-7m-7-3m³-3m
=4m³-10m-7
2x^5(-x)^2-(-x^2)^3(-7x)
=2X^7-(-X^6)(-7X)
=2X^7-7X^7
=-5 X^7
(x+1)(x-1)(x^2+1)
=(X²-1)(X²+1)
=X^4 - 1
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已知m>4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3|
m-2m-3m+4m-5m-6m+7m.2004m=?
m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值
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(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!
已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3|
计算:m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m
m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m
先化简 再求值(3+m)(3-m)+m(m-6)-7,其中m=1/2
3(m+1)^2+4(m+1)(m-1)-7m(m-1)
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(m-1-8/m+1)/m+3/m+1
m(m+1)(m+2)(m+3)+1?
m^2-7m-3
|(3-m)/m+3|