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Tetsu | 7 months ago (raw) | root | parent | reply | flag +1 
 Little tinkerer
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anna | 7 months ago (raw) | root | parent | reply | flag 
  - Let n = 21 + d. Let o(s) = s**3 + 4*s**2 + s + 5. Let d be o(-4). Solve n*w = -9*w + 18 for w.
A: -3