SOLUTION: Hello, Please help A: solve 3x^2-5x-7=0 B: find the x-intercept of F(X)=3x^2-5x-7 what are the soulutions x= type an exact answers, using radicals as needed. Express c

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Question 332417: Hello, Please help
A: solve 3x^2-5x-7=0
B: find the x-intercept of
F(X)=3x^2-5x-7
what are the soulutions x=
type an exact answers, using radicals as needed. Express complex numbers in terms of i use a comma to separate
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)
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=109 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 2.57338441815176, -0.906717751485092. Here's your graph:
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