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If `alpha` and `beta` are the roots of the quadratic equation x^2 – 3x -1 = 0, find...
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`x^2-3x-1 = 0`
`alpha` and `beta` are the roots of the quadratic equation.
Then we know that;
`alpha+beta = -(-3)/1 = 3`
`alphaxxbeta = -1/1 = -1`
So the answer is -3 and it is in option A.
Posted by jeew-m on September 7, 2013 at 6:09 AM (Answer #1)
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