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

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Question 464980: a) solve 3x^2-5x-13=0
b)find the x intercepts of
f(x)=3x^2-5x-13
what are the solutions? x=
what are the x intercepts?
Answer by jorel1380(3719)   (Show Source): You can put this solution on YOUR website!
3x2-5x-13=0
Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation (in our case ) has the following solutons:



For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=181 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 3.07560400784562, -1.40893734117895. Here's your graph:

The x intercepts are 3.07560400784562, -1.40893734117895..
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