x^2-5x+2=0 then x^2+10/x=?

4729

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Apr 24, 2019
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Title is the question and Answer is 23. İ could not solve this what so ever, Pls help.
 
Hello, and welcome to FMH! :)

From the given information, we may write:

[MATH]x^2=5x-2[/MATH]
[MATH]\frac{10}{x}=25-5x[/MATH]
What do you get when you add the two equations?
 
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