Mathematics, 20.04.2021 17:20 Dianar4308
Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.
1. (x + 3)(x + 4) = 12
2. x + 3 = 12 or x + 4 = 12
3. x = 9 or x = 8
Answers: 2
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If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?
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Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.
1...
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