Posted by Ashley on Tuesday, March 26, 2013 at 4:08pm.
Find the complex zeros of the polynomial function. Write f in the factored form. f(x)=x^33x^2+7x5
f(x)=

Find the complex zeros  Steve, Tuesday, March 26, 2013 at 4:14pm
a little synthetic division shows
f(x) = (x1)(x^22x+5)
And it's easy from there

Find the complex zeros  Reiny, Tuesday, March 26, 2013 at 4:19pm
First we have to find the real root, (every cubic has at least one real root)
try x = 1 , y = 1  3 + 7  5 = 0 , so x1 is a factor
by synthetic division I got
(x1)(x^2  2x + 5) = 0
So the real zero is when x=1
for complex ...
x^2  2x + 5= 0
x^2  2x = 5
x^2  2x + 15 + 1
(x1)^2 =4
x  1 = ± 2i
x = 1 ± 2i
Answer This Question
Related Questions
 algebra  Find the complex zeros of the polynomial function. Write f in factored...
 precalculus  find the complex zeros of the polynomial function. write F in the...
 college algebra  find the complex zeros of the polynomial function. write f in ...
 calculusplease help!!  find the complete zeros of the polynomial function. ...
 math  Find the complex zeros of the polynomial function, and write f in ...
 Algebra  Find the complex zeros of the following polynomial function. Write f ...
 Algebra  Find the complex zeros of the following polynomial function. Write f ...
 college algebra  find the complex zeros of the polynomial function. write f in ...
 calculus  find the complex zeros of the polynomial function. write f in ...
 calculus  Find the complex zeros of the polynomial function. Write f in ...
More Related Questions