(2m-3m)^2-2m+3m因式分解

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(2m-3m)^2-2m+3m因式分解
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(2m-3m)^2-2m+3m因式分解
(2m-3m)^2-2m+3m因式分解

(2m-3m)^2-2m+3m因式分解
3后面是n吧,
(2m-3n)^2-2m+3n
=(2m-3n)^2-(2m-3n)
=(2m-3n)(2m-3n-1)
如果:(2m-3m)^2-2m+3m
=m²+m
=m(m+1)

(2m-3m)^2-2m+3m
=(-m)^2+m
=m(1-m)

你是不是把3n写成3m了