SOLUTION: please help me with this problem which quadratic has roots 3 + i and 3 i? 1. x2 6x + 10 = 0 2. x2 + 6x 10 = 0 3. x2 6x + 8 = 0 4. x2 + 6x 8 = 0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: please help me with this problem which quadratic has roots 3 + i and 3 i? 1. x2 6x + 10 = 0 2. x2 + 6x 10 = 0 3. x2 6x + 8 = 0 4. x2 + 6x 8 = 0       Log On


   

Question 288697: please help me with this problem
which quadratic has roots 3 + i and 3 i?
1. x2 6x + 10 = 0
2. x2 + 6x 10 = 0
3. x2 6x + 8 = 0
4. x2 + 6x 8 = 0
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: if x=a or x=b are solutions, this means that x-a=0 or x-b=0. Use the zero product property to then get %28x-a%29%28x-b%29=0. From there, FOIL out the expression. In your case, a=3%2Bi and b=3-i