SOLUTION: Can you please help me with this problem? 25x^2-4/49 factor out completely or state that it is prime.

SOLUTION: Can you please help me with this problem? 25x^2-4/49 factor out completely or state that it is prime.

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Question 108140: Can you please help me with this problem? 25x^2-4/49 factor out completely or state that it is prime.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
25x^2-4/49 factor out completely or state that it is prime.
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Your problem is a "difference of squares".
(5x)^2 -(2/7)^2
It factors as follows:
(5x-(2/7))(5x+(2/7))
===============
Cheers,
Stan H.
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