Question 173416
7x^2 - 6x - .4255 = 0
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Use the quadratic formula to get:

x = [6 +- sqrt(36 -4*7*0.4255)]/14

x= [6 +- sqrt(24.086)]/14

x = [6 +- 4.9077..]/14

x = 0.779... or x = 0.078...
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Cheers,
Stan H.