8m(m²-3m+4)-m²(m-3)=?
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8m(m²-3m+4)-m²(m-3)=?
7x(2x-1)-3x(4x-1)-2x(x+3)=?
(-2a²b)²(ab²-a²b+a三次方=?
-(-x)²(-2x²y)三次方+2x²(x六次方y三次方-1)?
7x(2x-1)-3x(4x-1)-2x(x+3)=?
(-2a²b)²(ab²-a²b+a三次方=?
-(-x)²(-2x²y)三次方+2x²(x六次方y三次方-1)?
8m(m²-3m+4)-m²(m-3)
=8m^3-24m^2+32m-m^3+3m^2
=7m^3-21m^2+32m
7x(2x-1)-3x(4x-1)-2x(x+3)
=14x^2-7x-12x^2+3x-2x^2-6
=-4x-6
(-2a²b)²(ab²-a²b+a三次方)
=4a^4b^2(ab²-a²b+a三次方)
=4a^5b4-4a^6b^3+4a^7b^2
-(-x)²(-2x²y)三次方+2x²(x六次方y三次方-1)
=-x^2(-8x^6y^3)+2x²(x六次方y三次方-1)
=8x^8y^3+2x^8y^3-2x^2
=10x^8y^3-2x^2
=8m^3-24m^2+32m-m^3+3m^2
=7m^3-21m^2+32m
7x(2x-1)-3x(4x-1)-2x(x+3)
=14x^2-7x-12x^2+3x-2x^2-6
=-4x-6
(-2a²b)²(ab²-a²b+a三次方)
=4a^4b^2(ab²-a²b+a三次方)
=4a^5b4-4a^6b^3+4a^7b^2
-(-x)²(-2x²y)三次方+2x²(x六次方y三次方-1)
=-x^2(-8x^6y^3)+2x²(x六次方y三次方-1)
=8x^8y^3+2x^8y^3-2x^2
=10x^8y^3-2x^2
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
(m-2)(m²+2m+4)-2m(m²-3),其中m=2
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m
计算2m+6/m²-4m+4·1/m+3·(m-2)(m+3)/m+3
(m+3m+5m+.+2008m)-(2m+4m+6m+.+2009m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)