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6th Edition

Stewart + 5 others

Publisher: Cengage Learning

ISBN: 9780840068071

Chapter 1.9, Problem 75E

To determine

Comparing the algebraic and graphical methods for solving equations.

Expert Solution

Both the method gives same result.

**Calculation: **

By using algebric method solve the equation it gives exact answer and also the process is helps to understand the algebric structure of the equation.

In some equations it is impossible to issolate

Solve the equation by using graphical method gives a numerical approximation to answer.

It is also useful to us how the solution is related to other values of the variable.

For example, consider the equation

Solve the equation by using algebraic method first.

Now,

Hence, the solution is

Solve this equation by using graphical method.

Move all terms to one side and set equal to

Sketch the graph to find the value of

Sketch the graph of

From the graph, observe that

Hence, the solution is