SOLUTION: Solve the equations using the quadratic formula. Round to the nearest hundredth when necessary. 2x2 + 3x - 5 = 0

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Question 975625: Solve the equations using the quadratic formula. Round to the nearest hundredth when necessary.
2x2 + 3x - 5 = 0
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!

2x2 + 3x - 5 = 0
Use ^ (Shift 6) for exponents.
2x^2 + 3x - 5 = 0
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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=49 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 1, -2.5. Here's your graph:
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