Question 567200
Do you mean


*[tex \LARGE x^{2x} - 15 < 0] (which cannot really be solved algebraically), or


*[tex \LARGE x^{2x-15} < 0], or


*[tex \LARGE x^2x - 15 < 0]


or even *[tex \LARGE x^2 \pm x - 15 < 0]? Make sure you check for errors or ambiguities before you post.