SOLUTION: Factor completely, if polynomial is prime state it 4x^2 - 25 I am not quite sure how to so this problem would someone please help me out Thank you

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Question 331703: Factor completely, if polynomial is prime state it
4x^2 - 25

I am not quite sure how to so this problem would someone please help me out
Thank you
Found 2 solutions by nerdybill, Earlsdon:
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Factor completely, if polynomial is prime state it
4x^2 - 25
.
This is a "difference of squares" because we can rewrite it as:
(2x)^2 - (5)^2
Now, it factors as:
(2x - 5)(2x + 5)

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
4x%5E2-25 Notice that this is a difference of squares.
%282x%29%5E2-%285%29%5E2
A difference of squares is factorable as:
A%5E2-B%5E2+=+%28A%2BB%29%28A-B%29 so...
4x%5E2-25+=+highlight%28%282x%2B5%29%282x-5%29%29