Hi !
For you to better understand, substitute
The equation is now , that is to say
Now, use the method of discriminant or complete the square to get the solution
A slightly different way to do it is to substitute ^^
Hi !
For you to better understand, substitute
The equation is now , that is to say
Now, use the method of discriminant or complete the square to get the solution
A slightly different way to do it is to substitute ^^