SOLUTION: use the quadratic formula to find any x-intercepts ont he graph of the equation y=3x^2+9x-1

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Question 764801: use the quadratic formula to find any x-intercepts ont he graph of the equation
y=3x^2+9x-1

Found 2 solutions by reviewermath, stanbon:
Answer by reviewermath(1029)   (Show Source): You can put this solution on YOUR website!
Q: use the quadratic formula to find any x-intercepts on the graph of the equation
y=3x^2+9x-1
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A:
Quadratic Formula:
In , a = 3, b = 9, and c = -1
Using quadratic formula


The x-intercepts are (, 0) and (, 0).

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
y=3x^2+9x-1
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x = [-9 +- sqrt(81-4*3*-1)]/6
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x = [-9 +- sqrt(93)]/6
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x = [-9 +- 9.64]/6
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x = 0.1073 or x = -3.1067
====================
Cheers,
Stan H.
====================

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