# Solve the following quadratic equation. {eq}\displaystyle x^2 + 5x + 4 = 0 {/eq}

## Question:

{eq}\displaystyle x^2 + 5x + 4 = 0 {/eq}

The quadratic formula is a direct, easy, and accurate way when we need to solve a second-degree polynomial equation {eq}a{x^2} + bx + c = 0 {/eq}. We simply need to identify the coefficients of the equation and replace them in the following expression:

$$x = \frac{{ - b \pm \sqrt {{b^2} - 4ac} }}{{2a}}$$

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