分解因式(m²-4m)²+8(m²-4m)+16

问题描述:

分解因式(m²-4m)²+8(m²-4m)+16

(m²-4m)²+8(m²-4m)+16
=[(m²-4m)+4]²
=(m²-4m+4)²
=[(m-2)²]²
=(m-2)的4次方