SOLUTION: solve by using quadratic formula: 2x2+x-1=0

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Question 81917: solve by using quadratic formula: 2x2+x-1=0
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
solve by using quadratic formula: 2x^2+x-1=0
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x=[-1+-sqrt(1-4*2*-1)]/4
x=[-1+-sqrt(1+8)]/4
x=[-1+-3]/4
x=-1 or x=1/2
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Cheers,
Stan H.