solve the equation 1n x + 1n(X+2) =1...thank u
Last edited by sharmala; September 28th 2012 at 09:39 PM.
Follow Math Help Forum on Facebook and Google+
Hey sharmala. Is Inx meant to be ln(x) where ln is the natural logarithm?
yes....
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.
View Tag Cloud