(m的平方-2m)的平方+2m(m-2)+1

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(m的平方-2m)的平方+2m(m-2)+1
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(m的平方-2m)的平方+2m(m-2)+1
(m的平方-2m)的平方+2m(m-2)+1

(m的平方-2m)的平方+2m(m-2)+1

(m的平方-2m)的平方+2m(m-2)+1
=(m²-2m)²+2m(m-2)+1
=(m²-2m+1)²
=[(m-1)²]²
=(m-1)⁴

(m的平方-2m)的平方+2m(m-2)+1
=[m(m-2)]^2+2m(m-2)+1
=[m(m-2)+1]^2
=(m-1)^4