Friday

January 30, 2015

January 30, 2015

Posted by **Hawra** on Saturday, March 13, 2010 at 4:18pm.

degree: 4; zeros: -1, 2, and 1-2i.

I got an exam tomorrow, i would appreciate any kind of help, thank you.

- pre-calculus -
**Reiny**, Saturday, March 13, 2010 at 6:55pmYou are given 2 real roots and one complex.

As I noted before, complex numbers come in pairs,

so there has to be another one, 1+2i

so we have

f(x) = (x+1)(x-2)(x-1-2i)(x-1+2i)

multiply the last two brackets, the i's will drop out

- pre-calculus -
**hawra**, Saturday, March 13, 2010 at 8:08pmthank you again, life saver

**Answer this Question**

**Related Questions**

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

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

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

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

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 ...

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