solve the equation 1n x + 1n(X+2) =1...thank u
Last edited by sharmala; Sep 28th 2012 at 09:39 PM.
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Is Inx meant to be ln(x) where ln is the natural logarithm?
Well here is the main hint: ln(x) + ln(y) = ln(x*y).
i tried but the answer is incorrect
Show us what you tried.
ln(x)+ln(x+2) = ln(x*(x+2))
You then need to clear it of the logarithm, by taking the exponential of both sides of the equation.
e^[ln(x*(x+2))] = e^1
x^2 + 2x = e^1
x^2 + 2x - e^1 = 0
And then solve using the quadratic formula.
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