This form of equation cause me a lot of problems. I know it involves several steps, but i am getting stuck right at the start. 2^x + 2^-x =5 My teacher said to start it off by setting it equal to zero, but after that I don't know what to do.
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Originally Posted by mtt0216 This form of equation cause me a lot of problems. I know it involves several steps, but i am getting stuck right at the start. 2^x + 2^-x =5 My teacher said to start it off by setting it equal to zero, but after that I don't know what to do. multiply each term by ... let ... finally, use logarithms to solve for
thanks a lot .. How would this problem change if e was substituted for 2.
Originally Posted by mtt0216 thanks a lot .. How would this problem change if e was substituted for 2. no change ... in fact, would make the final step easier when solving using the natural log.
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