Hello, we need to solve this system, c being a real number.
y=y, right? So, it comes.
We can compute the discriminant.
If the discriminant is 0, there is 1 solution.
It means for
And the solution is
If the discriminant is > 0, there are 2 real solutions.
It means 4(4-c) > 0 <=> 4-c > 0 <=>
And the solution are
If the discriminant is < 0, there are no real solutions.
It means 4(4-c) < 0 <=> 4-c < 0 <=>
There are no real solutions and the complex solutions are
Thank you.
