SOLUTION: Can someone tell me how to factor the polynomial completely: 4x^2 - 169

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Question 258821: Can someone tell me how to factor the polynomial completely:
4x^2 - 169
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Whenever you have a difference of squares, it factors as follows.
z%5E2-a%5E2=%28z%2Ba%29%28z-a%29
In your case,
z%5E2=4x%5E2
z=2x
a%5E2=169
a=13
4x%5E2-169=%282x-13%29%282x%2B13%29+