Before we will try to solve the given , let's recall the number of real solutions to a depending on the sign of
- When has two real solutions,
- When has one real solution,
- When has no real solution.
Notice that in our case
which is positive, so there are two real solutions to the given equation. To find them by taking the , we need to consider the positive and negative solutions.
We found that
Thus, there are two solutions for the equation: