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10 = -x² + 2x
x² - 2x + 10 = 0
a = 1 b = -2 c = 10
-(-2) ± √(-2)²-4(1)(10)
2(1)
2±√4-40
2
2±√−36 – 2¹6 = {−2,4}
=
2
2
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