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Negative B, negative B, plus or minus the square root, plus or minus the square root, of B squared minus 4 A C, B squared minus 4 A C, all over 2 A, all over 2 A.

 

Mnemonic Device: (sung to the tune of Frere Jacques)

  • Negative B, negative B,
  • plus or minus the square root, plus or minus the square root,
  • of B squared minus 4 A C, B squared minus 4 A C,
  • all over 2 A, all over 2 A.

Explanation: to remember the quadratic formula

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