(m+1)(m-1)(m²-1)计算

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(m+1)(m-1)(m²-1)计算

(m+1)(m-1)(m²-1)计算
(m+1)(m-1)(m²-1)计算

(m+1)(m-1)(m²-1)计算
原式=(m^2-1)(m^2-1)
=m^4-2m^2+1