SOLUTION: 4x2+3x-8=0

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Question 618229: 4x2+3x-8=0
Answer by Maths68(1474)   (Show Source): You can put this solution on YOUR website!
4x^2+3x-8=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=137 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 1.08808748883995, -1.83808748883995. Here's your graph:
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