Q.1. - Precalculus Enhanced with Graphing Utilities

Question

 Solve the equation $2x^2 + 5x + 2 = 0.$

Step-by-Step Solution

Answer

The solution to the given equation is $x=-\frac{1}{2},\hspace{0.17em}x=-2$

Step 1.Given equation

Let this quadratic equation is written as$2x^2 + 5x + 2 = y$

Step 2. Draw graph of this equation

Step 3.Find intersection point of Graph on X-axis

Intersection points are $x=-\frac{1}{2},\hspace{0.17em}x=-2$