SOLUTION: Solve using the quadratic formula. 2x2 - 5x – 10 = 0

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Question 84110: Solve using the quadratic formula.
2x2 - 5x – 10 = 0

Found 2 solutions by jim_thompson5910, venugopalramana:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
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=105 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 3.8117376914899, -1.3117376914899. Here's your graph:
Answer by venugopalramana(3286)   (Show Source): You can put this solution on YOUR website!
Solve using the quadratic formula.
2X^2-5X-10=0
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