If 4x + 4/x = 40, what is the value of x^2 + 1/x^2? Sorry, I haven't gotten used to LaTex yet, so I'll be posting an image again: My answer is 100, but the book says 98. How do you solve this? Thank you!

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Originally Posted by viccal If 4x + 4/x = 40, what is the value of x^2 + 1/x^2? Sorry, I haven't gotten used to LaTex yet, so I'll be posting an image again: My answer is 100, but the book says 98. How do you solve this? Thank you!

Oh, wow! Thanks a lot! I didn't realize how careless I was in solving it. Thanks!

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