SOLUTION: Find a ploynomial equation given the zeros: 3+2i, 3-2i, -1 The f(x)= x^3-5x^2+__x+13 Find the missing number given the zeros

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find a ploynomial equation given the zeros: 3+2i, 3-2i, -1 The f(x)= x^3-5x^2+__x+13 Find the missing number given the zeros      Log On


   

Question 1093906: Find a ploynomial equation given the zeros: 3+2i, 3-2i, -1
The f(x)= x^3-5x^2+__x+13
Find the missing number given the zeros
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28+x+-%28+3+%2B+2i+%29+%29%2A%28+x+-%28+3+-+2i+%29+%29%2A%28+x+-%28-1%29+%29+=+0+
+%28+x+-+3+-+2i+%29%2A%28+x+-+3+%2B+2i+%29%2A%28+x+%2B+1+%29+=+0+

+%28+x%5E2+-+6x+%2B+13+%29%2A%28+x+%2B+1+%29+=+0+
+x%5E3+-+6x%5E2+%2B+13x+%2B+x%5E2+-+6x+%2B+13+=+0+
+f%28x%29+=+x%5E3+-+5x%5E2+%2B+7x+%2B+13+
The missing number is 7