here it is: 4^x - 3.2^x + 2 = 0 i have a complete mindblank when i try and solve this.... can anyone help me out?
Last edited by mr fantastic; March 7th 2011 at 01:29 AM. Reason: Re-titled.
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. Let so that the equation becomes . You should be able to solve for and use this to solve for .
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