BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.4, Problem 6E
To determine

The domain of the expression x4+x3+9x .

Expert Solution

Answer to Problem 6E

The domain of the given expression is R

Where R is real number

Explanation of Solution

Given information:

The given expression is provided below

  x4+x3+9x

Formula used:

Choose any value of x

Calculation:

Consider the expression as,

  x4+x3+9x=0

Now, take x common from both side of the expression

Then, the expression will become as provided below

  x4+x3+9x=0x(x3+x2+9)=0x=0or(x3+x2+9)=0

For any value of x ,the equation will satisfies.

Therefore the x(,)

So the x belongs from whole real number.

Have a homework question?

Subscribe to bartleby learn! Ask subject matter experts 30 homework questions each month. Plus, you’ll have access to millions of step-by-step textbook answers!