SOLUTION: f(x) = 3x^+2x-4

Question 32937: f(x) = 3x^+2x-4
Answer by xcentaur(357) (Show Source): You can put this solution on YOUR website!
f(x)=3x^+2x-4
equate f(x)=0 to get the roots
now
3x^+2x-4=0
this is a quadratic in x

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=52 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.86851709182133, -1.535183758488. Here's your graph:

So you have your 2 values of x

If you were looking for the domain and range for the function f(x),please post again,clearly stating the question
Hope this helps,
xC

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