SOLUTION: -16t² + 30t + 8 = 0

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Question 172108: -16t² + 30t + 8 = 0
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
-16t² + 30t + 8 = 0
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8t² - 15t - 4 = 0
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=353 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 2.1117683892535, -0.236768389253496. Here's your graph:

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The answers are correct, but ignore the factors.




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