SOLUTION: Factor completely: 64r^4-121

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Question 425037: Factor completely:
64r^4-121
Answer by Gogonati(855) About Me  (Show Source):
You can put this solution on YOUR website!
Solution:This expression can be written:
%288%2Ar%5E2%29%5E2-%2811%29%5E2+=
%288%2Ar%5E2-11%29%2A%288%2Ar%5E2%2B11%29