SOLUTION: what is the common denomonator for x squared divided by 81 + y squared divided by 49=1

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Question 372056: what is the common denomonator for x squared divided by 81 + y squared divided by 49=1
Answer by Fombitz(32388) About Me  (Show Source):
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x%5E2%2F81%2By%5E2%2F49=1
The least common denominator would be 81%2A49=3969.