Algebric problem

[nashiruddin]

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How to Ask Better GRE Questions on Forums

Since GregMat (who is a very chill person) doesn’t have any specific formatting rules when it comes to asking questions on the forums, I feel like there should at least be a reference text of some sort that can help people ask better questions and make the process more enjoyable for those who try to answer them. The Golden Rule: Imagine You’re Trying To Answer the Question Before you post your question about GRE preparation, practice questions, or strategies, try to put yourself in the shoes of…

[thapliyalantara31]

Hi
Is the answer D?

[nashiruddin]

It is B.

[thapliyalantara31]

I got it, first find value of K from the given equation, two values are 3±sq.rt5/2
Then substitute these values in the two equations , k^2+1/k^3 is bigger in both cases.