Let's solve in :
You can rephrase the expression into:
You can factorize this expression into:
Let's solve in :
ℹ = ‖ =
Let's solve in :
Solution found:
Let's solve in :
Solution obtained:
Let's build the table of the different terms to determine the global solution:
| x | | | | | | | |
| | - | | - | 0 | + | |
| | - | 0 | + | | + | |
| | + | 0 | - | 0 | + | |
▶Solution obtained: