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December 18th, 2018, 12:08 PM   #1
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Solve equation

(4+√15)^x+(4*√15)^x=62
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December 18th, 2018, 12:40 PM   #2
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Quote:
Originally Posted by reobjan View Post
(4+√15)^x+(4*√15)^x=62
Is there a typo here? This is a rough one unless both terms are at least multiples of each other.

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December 18th, 2018, 01:04 PM   #3
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The "*" probably should be "-" ?
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December 18th, 2018, 03:04 PM   #4
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That seems plausible, as it would make the second term the reciprocal of the first.
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