Finding an Unknown in a Geometric Sequence

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Hii, thank you so much^^ this is exactly what I was looking for :D. How did u get 0=3(K^2 - 16) the sixteen there. I forgot how to do that;v;

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Hello! This was very helpful but I still don’t know how to solve my question and I was wondering if you might be able to help. The question is: For the geometric sequence x, 5x + 2, 8x - 6 determine the value of x. I tried what you did but when I get to factoring, I’m kind of confused. Any help at all is extremely appreciated! Thank you!

arianarice