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20 May, 00:55

Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.

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Answers (2)
  1. 20 May, 02:13
    0
    Percy is not correct because he applied the zero product property to a factored expression that was not equal to 0. He should have subtracted 12 from both sides to get x2 + 7x = 0 before factoring. The correct solutions are 0 and - 7
  2. 20 May, 04:48
    0
    What does Percy's work look like?
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Home » Mathematics » Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.
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