Saturday

December 20, 2014

December 20, 2014

Posted by **Jessica** on Tuesday, February 22, 2011 at 9:31pm.

The problem is:

factor each expression and find all complex roots of x^3+64

I got as far as x^3+64=(x+4)(x^2-4x+16)

Now how do i find the roots of (x+4) and the roots of (x^2-4x+16)

Thanks

- Algebra 2 -
**bobpursley**, Tuesday, February 22, 2011 at 9:37pmthe root of x+4=0 is x=-2

the roots of the next can be solved by the quadratic equation..

x=(4+-sqrt(16-64))/2

that gives you three roots.

**Answer this Question**

**Related Questions**

College Algebra--Still Confused - I have a few problems I need help with and ...

Algebra2 - Find the polynomials roots to each of the following problems: #1) x^2...

College Algebra - I have a few problems I need help with and also do have ...

Math- polynomial functions - State the number of complex roots of each equation ...

Algebra - Can someone please explain how to do these problems. 1)write a ...

Alg II - I'm working with finding roots of polynomial equations with degrees of ...

Alg II - I'm working with finding roots of polynomial equations with degrees of ...

math - Still looking at how to solve these... Both are cubic polynomials? 43x^3...

Math - How do I go about finding the roots (real and complex) of this polynomial...

algebra - Factor this polynomial: F(x)=x^3-x^2-4x+4 Try to find the rational ...