Question

Solve for x
lnx +ln(x-1) = 1

Answer 1

value of log of a base a is 1
so we can write 1 as ln e

equation becomes x(x-1)=e
solve

Answer 2

hmm, honestly I am not sure of where to go from there, I was thinking it was x^2-1 = e and then x^2 = e+1 and then x = sqrt(e+1) but I forgot to multiple the x by the 1 too so it would have been x^2 - x = e. Not dure where to go from here or if I should have multiplied the 2.

Answer 3

Not sure*

Answer 4

use e as a constant value..u can't skip x like dat. u hav to consider it..
make it x^2-x-e=0 and solve the quadratic equation

Answer 5

When I plug in e, should I plug in the value 2.7?

Answer 6

yes

Answer 7

okay I will try it out

Answer 8

Okay I got x = 2.22287 and x = -1.22287 , how can I check if the answers are right?

Answer 9

x cannot be -ve so x= 2.22 is ur ans

Answer 10

I answered it in my online thing and it said it was wrong :/

Answer 11

dats weird...can u post the image of the question?

Answer 12

I am trying to post it but it is not working, can you try to work out the question to see if you get the same answer?

Answer 13

even i am getting 2.22

Answer 14

Are you sure the method is correct?

Answer 15

Here I will make a new post