(m2-1/2m+1/4)(m2+1/2m+1/4)(m-1/2)(m+1/2)=?(过程)

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(m2-1/2m+1/4)(m2+1/2m+1/4)(m-1/2)(m+1/2)=?(过程)
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(m2-1/2m+1/4)(m2+1/2m+1/4)(m-1/2)(m+1/2)=?(过程)
(m2-1/2m+1/4)(m2+1/2m+1/4)(m-1/2)(m+1/2)=?(过程)

(m2-1/2m+1/4)(m2+1/2m+1/4)(m-1/2)(m+1/2)=?(过程)
上式=(m-1/2)^2(m+1/2)^2(m-1/2)(m+1/2)
=(m-1/2)^3(m+1/2)^3
=((m-1/2)(m+1/2))^3
=(m^2-1/4)^3