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.
Please, see the offered solution, note, there are 2 ways in it (a and b)
Answer:
$5.25
Step-by-step explanation:
8.75/5=1.75
1.75 x 3=5.25
Answer:

Step-by-step explanation:
x² + 6x + 1 = 0
a = 1 , b = 6 , c = 1

Subtract 0.75x to x then once you get the answer to that it will be easier from there