Solve for x: e^x + 9e^-x = 6.
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Originally Posted by bobby77 Solve for x: e^x + 9e^-x = 6. Hi,
e^x + 9e^-x = 6 Multiply both sides by e^x and rearrange:
(e^x)^2-6e^x+9=0 The LHS is a complete square:
Thus e^x = 3, that means x = ln(3)
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