15 = .646x^2 - 8.257x + 21.703 What is x?

What is x in this quadratic equation?
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1 Answer

15=0.646 x^2 -8.257x +21.703

become 0.646x^2 -8.257x +6.703=0

yuze quadratik equashun

roots=11.9105606 & 0.8711732
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