初三数学题整式乘法.①(-5-1/3)(3/5x-3/4y+2)②m(m+7)-(m+3)(m-2)
整式的乘法.计算题(1) (x+2)(x-5) (2) (m+3)(m-3) (3) (2x-y)^2(4) (-2x+
m-2m-3m+4m-5m-6m+7m.2004m=?
运用整式乘法公式 0.345^2 +1.345^2-0.345*2.69 .计算:(y-x)^3*(x-y)^m-(x-
计算:(m+3m+5m+…+2015m)-(2m+4m+6m+…+2014m)=
若多项式5x*x-2mxy-3y*y+4xy-3x+1中不含xy项,求(-(m*m*m)+2(m*m)-m+1)-(m*
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!
(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.+2013m)-(2m+4m+6m+.+2012m)=?