SOLUTION: a) solve 3x^2 - 5x -13 =0 what are the solution? x=? b) find the x-intercepts of f(x) = 3x^2-5x-13 Help?

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: a) solve 3x^2 - 5x -13 =0 what are the solution? x=? b) find the x-intercepts of f(x) = 3x^2-5x-13 Help?      Log On


   

Question 256525: a) solve 3x^2 - 5x -13 =0 what are the solution? x=?
b) find the x-intercepts of f(x) = 3x^2-5x-13 Help?
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
Lets take one at a time:
a) solve 3x^2 - 5x -13 =0 what are the solution? x=?
step 1 - using quadratic, we get
x+=+%285+%2B-+sqrt%2825-4%2A3%2A%28-13%29+%29%29%2F6+
x+=+%285+%2B-+sqrt%28181%29%29%2F6
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b) find the x-intercepts of f(x) = 3x^2-5x-13
The x-intercepts are the same as solutions and roots.
x+=+%285+%2B-+sqrt%28181%29%29%2F6