SOLUTION: Solve by 2 methods, Quadratic Equation and Factoring: 2x^2-x-15=0

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Question 1038843: Solve by 2 methods, Quadratic Equation and Factoring:
2x^2-x-15=0
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
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Solve at least by the quadratic formula.

Demonstrate that you can do this arithmetic.