CPM Homework Help : CCA2 Problem 9-10

Find all values of $a$ for which the equation $ax^2 + 5x + 6 = 0$ has solutions that are real numbers. Express $a$ in terms of one or more inequalities.

Hint:

Use the Quadratic Formula. What do you know about the discriminant that would make this problem easy?

Answer:

$a>\frac{25}{24}$