Question 172320
 Solve using the quadratic formula: 25x^2+30x+9=0 
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Using the quadratic formula is just plugging in a, b and c.
For this one, a = 25, b = 30 and c = 9.
*[invoke solve_quadratic_equation 25,30,9]
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The onsite solver gives more detail then you might need, but it gets the answers, shows how it's done, and shows a graph.