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6th Edition

Daniel C. Alexander + 1 other

Publisher: Cengage Learning

ISBN: 9781285195698

Chapter A.5, Problem 21E

Textbook Problem

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*In Exercises 19 to 26, solve each equation by using the Quadratic Formula. Give exact solutions in simplified form. When answers contain square roots, approximate the solutions rounded to two decimal places.*

To determine

**To find:**

To solve each equation by using the Quadratic Formula

Consider the following equation,

Subtract 7*x* on both sides to get the following,

The general form of the quadratic equation is given below,

Where *a* is the number multiplied by *b* is the number multiplied by *x*, and *c* is the constant term.

**Quadratic formula:**

The solution for

Compare the given equation with general equation to get the following,

Therefore,

Substitute these values in equation (1) to get the following,

Elementary Geometry for College Students

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