Question

How do you solve `x^2 + 5x +4=0`?

Answer 1

Solve: `y = x^2 + 5x + 4 = 0`

Explanation:

This solving can use the popular Shortcut:
When (a - b + c = 0), one real root is (-1) and the other is `(-c/a = -4)`

Answers: -1 and 4