SOLUTION: What am I suppose to do with this? Please help me understand the steps of this? Factor completely or state that it is “Prime”: a. Z4 –16 b. X2 + 1

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: What am I suppose to do with this? Please help me understand the steps of this? Factor completely or state that it is “Prime”: a. Z4 –16 b. X2 + 1       Log On


   

Question 49991: What am I suppose to do with this? Please help me understand the steps of this?
Factor completely or state that it is “Prime”:

a. Z4 –16
b. X2 + 1
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a. Z^4 –16
=(Z^2+4)(Z^2-4)
=(Z^2+4)(Z-2)(Z+2)
---------------------

b. X2 + 1
Prime unless you know complex numbers.
Cheers,
Stan H.