Tuesday

September 30, 2014

September 30, 2014

Posted by **Amber** on Thursday, September 27, 2012 at 3:45am.

- Math -
**bobpursley**, Thursday, September 27, 2012 at 4:09ammultiply this out:

(x-5) (x^2+4)

I suspect you copied the problem wrong, it should be zeroes at 5, -2i, 2i

- Math -
**Steve**, Thursday, September 27, 2012 at 11:21amUnless there is the implicit assumption that if 2i is a root, so is -2i, so the polynomial would be

(x-5)(x+2)(x^2+4) = x^4 - 3x^3 - 6x^2 - 12x - 40

**Answer this Question**

**Related Questions**

calculus--please help!! - I have two questions that I don't understand and need ...

college algebra - form a polynomial f(x) with real coefficients having the given...

algebra - form a polynomial f(x) with real coefficients having the given degree ...

pre-calculus - form a polynomial f(x) with real coefficients having the given ...

pre calculus - use given info about a polynomial whose coefficients are real ...

Form a polynomial f(x) from coefficient and it's 0 - Form a polynomial, f(x), ...

Calculus - Form a polynomial, f(x) with real coefficients having the given ...

College Algebra! help! - Form a polynomial f(x) with the real coefficients ...

College Algebra - Form a polynomial f(x) with real coefficients having the given...

College algebra - Form a polynomial f(x) with the real coefficients having the ...