SOLUTION: Find h(k-2) if h(x)= 3x^2-5x+1 Thank you so much for your help!

Question 667470: Find h(k-2) if h(x)= 3x^2-5x+1
Thank you so much for your help!
Answer by jerryguo41(197) (Show Source): You can put this solution on YOUR website!

if h(K-2)=0 then:

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=13 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 3.43425854591066, 2.232408120756. Here's your graph:

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