SOLUTION: Using the given zero, find one other zero of f(x). Explain the process you used to find your solution. 2 - 3i is a zero of f(x) = x^4 - 4x^3 + 14x^2 - 4x + 13

Algebra ->  Rational-functions -> SOLUTION: Using the given zero, find one other zero of f(x). Explain the process you used to find your solution. 2 - 3i is a zero of f(x) = x^4 - 4x^3 + 14x^2 - 4x + 13      Log On


   



Question 764825: Using the given zero, find one other zero of f(x). Explain the process you used to find your solution.
2 - 3i is a zero of f(x) = x^4 - 4x^3 + 14x^2 - 4x + 13

Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Avoiding to give intricately fancy reasoning, highlight%282%2B3i%29 is one other zero because complex solutions to polynomial equations occur in conjugate pairs. Knowing that both 2-3i and 2+3i are zeros of f(x), you should be able to form the resulting quadratic factor which those two zeros form. You might then want to divide f(x) by this quadratic factor and possibly find the other two zeros of f(x).

Note that you have
=%28x-2%29%5E2-%283i%29%5E2=%28x-2%29%5E2%2B9=x%5E2-4x%2B4%2B9=highlight%28x%5E2-4x%2B13%29