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Mathematics, 26.03.2021 16:20 tabyers2645
Justine correctly used completing the square to rewrite
the quadratic expression 2x2 – 12x + 25 as 2(x - 3)2 + 7.
After seeing the new form of the expression, Justine
said that the expression had a minimum value of 7
when xis -3. Is Justine right?
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Answers: 2
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Justine correctly used completing the square to rewrite
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