(m^2+4m)^2+8(m^2+4m)+162.(3a-5b)^2-(5a-3b〉^2 3.4a^2-16a^4 4.4a^2-(a^2+1)^2 5.9x^2-y^2-6x+1
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(m^2+4m)^2+8(m^2+4m)+162.(3a-5b)^2-(5a-3b〉^2 3.4a^2-16a^4 4.4a^2-(a^2+1)^2 5.9x^2-y^2-6x+1
(m^2+4m)^2+8(m^2+4m)+16
2.(3a-5b)^2-(5a-3b〉^2 3.4a^2-16a^4 4.4a^2-(a^2+1)^2 5.9x^2-y^2-6x+1
(m^2+4m)^2+8(m^2+4m)+162.(3a-5b)^2-(5a-3b〉^2 3.4a^2-16a^4 4.4a^2-(a^2+1)^2 5.9x^2-y^2-6x+1
初一数学因式分解
1.(m^2+4m)^2+8(m^2+4m)+16
解,得:
==[(m^2+4m)+4]^2
==(m^2+4m+4)^2
==(m+2)^4
2.(3a-5b)^2-(5a-3b〉^2
解,得:
==[(3a-5b)+(5a-3b)]*[(3a-5b)-(5a-3b)]
==(8a-8b)*(-2a-2b)
==-16(a-b)*(a+b)
3.4a^2-16a^4
解,得:
==4a^2(1-4a^2)
==4a^2(1+2a)(1-2a)
4.4a^2-(a^2+1)^2
解,得:
==[2a+(a^2+1)]*[ 2a-(a^2+1) ]
==(2a+a^2+1)*(2a-a^2-1)
==-(a+1)^2(a-1)^2
5.9x^2-y^2-6x+1
解,得:
== (9x^2-6x+1)-y^2
==(3x-1)^2-y^2
==(3x-1+y)(3x-1-y)
{[(1.5m+1.8m)×2+(4.5m×2m)]×(3.6m-0.15m)-0.8m×2m-1.5m×0.5m-1.0m×0.5m}×4间×3层+[(4.827m×2+2.4m×2m)×(3.6m-0.15m)-1.0m×2.1m×2面-1.0m×2.1m-1.2m×0.6m-1.2m×1.8m]×2层 +(6.387m+4.435m+6m+2.247m+2.247m×2+1.2m×2+3m×2)×(3.6m-0.15m)-1.2
计算:(m+3m+5m+…+2015m)-(2m+4m+6m+…+2014m)=
m-2m-3m+4m-5m-6m+7m-8m-9m+...+2002m-2003m-2004m求m的值
化简:(2m/m+2-m/m-2)/ ( m/m²—4)=?
化简:【2m/(m+2) - m/(m-2)】÷m/(m²-4)
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
计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2008m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
m-2m-3m+4m-5m-6m+7m.2004m=?
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
化简(m*m-2m)/(4-m*m)
化简求值(m+2/m²-2m)-(m-1/m²-4m+4)÷(m-1/m) 其中m=4