Question 357185
 x^2-16x+4=0
Quadratic Formula:
x = [16 +- sqrt(16^2-4*4)]/2
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x = [16 +- sqrt(240)]/2
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x = [16 +- 4sqrt(15)]/2
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x = [8 +- 2sqrt(15)]
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Cheers,
Stan H.