Posted by **Ash** on Tuesday, October 9, 2007 at 9:33pm.

Could you explain to me decartes Rule of signs?

Here are my questions:

Use Decartes Rule of signs to determine the possible number of postive and negative real zeros for the given function.

1. f(x)=-7x^9+x^5-x^2+6

choices are:

a. 2 or 0 positive zeros,2 or 0 negative zeros

b.2 or 0 positive zeros, 3 or 1 negative zeros

c.3 or 1 positive zeros, 3 or 1 negative zeros

d. 3 or 1 positive zeros, 2 or 0 negative zeros

2. f(x)10x^3-8x^2+x+5

my choices are:

a. 3 or 1 positive zeros, 1 negative zero

b.2 or 0 positive zeros, no negative zeros

c.3 or 1 positive zeros, 2 or 0 negative zeros

d.2 or 0 positive zeros, 1 negative zero

## Answer this Question

## Related Questions

- Decartes Rule of Signs-Check Problems - Use Decartes Rule of signs to determine ...
- Decartes Rule - Can you please check my work? Use Decartes Rule of signs to ...
- Decartes Rules - Use Decartes Rule of signs to determine the possible number of ...
- Math Algebra - Use Descartes' Rule of Signs to determine the possible number of ...
- college allgebra - f(x)=x^6+4x^5+4x^4+3x^3-x^2-5x+4 Find the maximum number of ...
- calculus - For the following function f(x)=2x^4-6x^2+2x-1. Find the maximum ...
- college algebra--please help - what does Descartes rule of signs tell you about ...
- Math - Using the Descartes Rule of Sign count the number of sign changes of f(-x...
- Pre Calculus - Using Descartes' Rule of Signs how can you determine the number ...
- Factoring Trinomials - How do you determine the signs? I know these wouldn't ...

More Related Questions