How do you solve ln(x)=x2?

1 Answer
Sep 27, 2015

Try using a graphing calculator because there is no simple algebraic solution.

Explanation:

When you learn calculus, you will discover approximation techniques such as the Newton-Raphson method to find the solutions to this type of problem.

Here is graph of the two lines:

enter image source here

You can also use a graphing calculator such as a TI-84 and use the intersection feature to get the answers.

The approximate solutions using my TI-84 are:

x0.1586
x3.1462

Hope that helped