Question 4

Let x1

Solving Quadratic Equations

Solve the quadratic equation 4x2 + 25 = -20x by using the Quadratic Formula. Write

your answers in Exact Form and in Approximate Form (Rounded to three decimal places

as needed). Note that in some cases, the Exact Form and the Approximate Form may be

the same.

=

x1 =

-b-√√b² - 4ac

2a

x1 =

<

Note: If only one solution exists, x2 will equal DNE

4x² + 25 = -20x

Exact Form

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and x2 =

=

Approximate Form

-b+√b² - 4ac

2a

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x2 =

x2 =

Exact Form

Approximate Form