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This is Jovan’s solution for the equation x^2-8x-9=0:
x2 – 8x – 9 = 0
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Mathematics, 07.06.2021 14:00 fonsworth5
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This is Jovan’s solution for the equation x^2-8x-9=0:
x2 – 8x – 9 = 0
x2 – 8x = 9
x2 – 8x + 16 = 9 + 16
(x – 4)2 = 25
x – 4 = 25 and x – 4 = - 25
x = 29 and x = -21
Is Jovan’s solution correct?
Answers: 2
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