February 23, 2017

Homework Help: Pre-calc

Posted by James on Wednesday, October 10, 2012 at 12:39am.

Use the given zero to find the remaining zeros of the function:

h(x)=x^4-15x^3+55x^2+155x-1476 Zero:5-4i

I multiplied [x-(5-4i)][x-(5+4i)] and got x^2-10x+9.

The example I have says to divide that by h and get a second quadratic equation that is also a factor of h. I have to use that equation to find the remaining zeros. How do I find the second equation?

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