SOLUTION: Find the vertex and the x-intercepts of the parabola: Show Steps y = 3x^2+5x–7

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Question 950029: Find the vertex and the x-intercepts of the parabola: Show Steps
y = 3x^2+5x–7
Answer by addingup(3677) About Me  (Show Source):
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Vertex: (-5/6, -109/12)~~(-0.833333, -9.08333)
Intercepts:
y = -7
x = 1/6 (-5-sqrt(109)), x = 1/6 (sqrt(109)-5)