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Roman Little
Mathematics
10 November, 22:33
Edna says that when (x-2) ^2=9
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Clara Yu
10 November, 22:58
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If you are solving for x then it is:
5, - 1
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Albert Potter
10 November, 22:59
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(x-2) 2 = 9 x2 - 4x + 4 = 9 x2 - 4x + 4 - 9 = 9-9 x2 - 4x - 5 = 0 (x+1) (x-5) = 0 x+1 = 0 or x - 5 = 0
Answer: x = - 1 or x = 5
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