Comparing Casio FX-115ES & Sharp ELW516B: Find Polynomial Roots?

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The discussion focuses on the capabilities of the Casio FX-115ES and Sharp ELW516B calculators regarding finding polynomial roots. The user seeks to determine if either calculator can solve polynomials of the nth degree and find complex solutions. While the Casio FX-115ES has a user guide available that suggests it can handle such calculations, the Sharp ELW516B lacks a readily available guide, though reviews indicate it can solve algebraic equations. Ultimately, users are encouraged to consult the user manuals for detailed functionalities. The conversation highlights the importance of understanding each calculator's features before making a return decision.
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This isn't really a HW question, so I am posting it here. Hopefully someone will be able to help me, and I'm sure many of you will roll your eyes... I want to return one of my new calculators, but I'm not sure which one I should keep. I own the Casio FX-115ES and Sharp ELW516B, both unopened.

My question is, can either of these find the roots of a polynomial to the nth degree? For example, 5x^7-4x^5+11x. And can either of them find complex solutions?

Thank you for your time.
 
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I recommend you consult the user's guides. If you don't want to open the boxes to get the guides out, there is a guide for the casio here:
http://support.casio.com/pdf/004/fx-115ES_991ES_Eng.pdf


I was unable to find a guide for the sharp EL W516B but reviews indicate that it can solve algebraic equations.
 

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