SOLUTION: x^-4x-21

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 Click here to see ALL problems on Polynomials-and-rational-expressions Question 391383: x^-4x-21Found 2 solutions by ewatrrr, solver91311:Answer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website!  Hi, x^?? Please repost giving the exponent and stating Your question, so we as Tutors can best be of assistance to You. thanks. Answer by solver91311(17077)   (Show Source): You can put this solution on YOUR website! I presume you mean: Which is a very attractive little quadratic trinomial. Unfortunately, you didn't bother to actually ask a question, tell us what it is that you don't understand, or tell us what you have tried already. Therefore, I'm not going to help you. John My calculator said it, I believe it, that settles it