Homework Help: calculus

Posted by allison--Please help!! on Thursday, December 27, 2012 at 7:01pm.

Find the complex zeros of the polynomial function. Write f in factored form.

f(x)=3x^4-10x^3-12x^2+122x-39

Please show wrok, I do not understand how to do this.

calculus - Steve, Thursday, December 27, 2012 at 11:44pm
The 39 and 3 tempt me to try roots like 1,3,1/3. Go for the low-hanging fruit first

use synthetic division to find that

f(-3)=0, so
f(x) = (x+3)(3x^3-19x^2+45x-13)
f(1/3) = 0, so
f(x) = (x+3)(3x-1)(x^2-6x+13)
there are no more real roots

Answer this Question

Related Questions

calculus--please help!! - find the complete zeros of the polynomial function. ...
calculus - find the complex zeros of the polynomial function. write f in ...
pre-calculus - 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 ...
college algebra - find the complex zeros of the polynomial function. write f in ...
college algebra - find the complete zeros of the polynomial function. write f in...
calculus - can someone please help me find all the zeros of the following ...
calculus-can someone please help me with this ques - Find all zeros of the ...
calculus - find all zeros of the following polynomial. write the polynomial in ...
math - find complex zeros of the polynomial function. put f in factored form. f(...

For Further Reading

First Name:
School Subject:
Answer: