Prove that (a+b+c)³ - a³ - b³ - c³ = 3(a+b)(b+c)(c+a)

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Explained how to prove (a+b+c)³-a³-b³-c³=3(a+b)(b+c)(c+a).
  1. Mathematics with B.R.Sharma
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vanshdangwal
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astikpandey
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itsmesargam
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anitabarnwal
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imranrahmani
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debarghya
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priv.iiii
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chinkiattri