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5:58 AM
Question: “... My attempt: P = (n^2-1)n^2(n^2+1)=n(n-1)(n+1)[n(n^2+1)]”. Answer (from a >80K user!): “Hint: Write your product in the form (n-1)n(n+1)n(n^2+1).” – What am I missing here?
 
 
4 hours later…
9:43 AM
[ SmokeDetector | MS ] No whitespace in title (61): Owvwosveihwoqbwpabao ✏️ by Erwin Schrodinger on math.SE
 
 
7 hours later…
4:43 PM
D1, D2, D3.
D4, D5, D6.
D7, D8, D9.
C1, C2, C3.
C4, C5, C6.
C7, C8, C9.
 
 
7 hours later…

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