For this case we have that by definition, the discriminant of a quadratic equation
, is given by:

: Two different real roots
: Two equal real roots
: Two different complex roots
If we have
, then:

Substituting the values:

Thus, we have two equal real roots.
ANswer:
We have two equal real roots.
A² - 225 = (a-15)(a+15)
..................................................................
Answer:
it is either 2^n+5 or n²+5
Step-by-step explanation:
I'm not one hundred percent sure
39.2 percent out of 112 that is 35%
The answer to the problem is 5