(m-n)^3+2n(n-m)^2 快的追分(1) (m-n)^3+2n(n-m)^2(2) 派(圆周率)R^2 - 4派(同上)X^2
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![(m-n)^3+2n(n-m)^2 快的追分(1) (m-n)^3+2n(n-m)^2(2) 派(圆周率)R^2 - 4派(同上)X^2](/uploads/image/z/7094436-60-6.jpg?t=%28m-n%29%5E3%2B2n%28n-m%29%5E2+%E5%BF%AB%E7%9A%84%E8%BF%BD%E5%88%86%EF%BC%881%EF%BC%89+%28m-n%29%5E3%2B2n%28n-m%29%5E2%EF%BC%882%EF%BC%89+%E6%B4%BE%EF%BC%88%E5%9C%86%E5%91%A8%E7%8E%87%EF%BC%89R%5E2+-+4%E6%B4%BE%28%E5%90%8C%E4%B8%8A%29X%5E2)
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(m-n)^3+2n(n-m)^2 快的追分(1) (m-n)^3+2n(n-m)^2(2) 派(圆周率)R^2 - 4派(同上)X^2
(m-n)^3+2n(n-m)^2 快的追分
(1) (m-n)^3+2n(n-m)^2
(2) 派(圆周率)R^2 - 4派(同上)X^2
(m-n)^3+2n(n-m)^2 快的追分(1) (m-n)^3+2n(n-m)^2(2) 派(圆周率)R^2 - 4派(同上)X^2
(m-n)^3+2n(n-m)^2
=(m-n)³+2n(m-n)²
=(m-n)²(m-n+2n)
=(m-n)²(m+n)
πR²-4πx²
=π(R²-4x²)
=π(R+2x)(R-2x)
(1) (m-n)^3+2n(n-m)^2
=(m-n)²(m-n+2n)
=(m-n)²(m+n)
(2) 派(圆周率)R^2 - 4派(同上)X^2
=π(R²-4x²)
=π(R+2x)(R-2x)
(m-n)^3+2n(n-m)^2=(m-n)^3+2n(m-n)^2=(m-n)^2(m-n+2n)=(m+n)(m-n)^2
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