利用平方差公式解决(2m+n-p)(2m-n+p)
问题描述:
利用平方差公式解决(2m+n-p)(2m-n+p)
答
你可以写成。[2m (n-p)]×[2m-(n-p)]=4m^2-(n-p)^2
答
(2m+n-p)(2m-n+p)
=[ 2m+ (n-p) ] [ 2m - (n-p)]
= 4m^2 -(n-p)^2
答
解
(2m+n-p)(2m-n+p)
=[2m+(n-p)][2m-(n-p)]
=(2m)²-(n-p)²
=4m²-n²+2np-p²