Asked by teetee
expressing factor 49y^2 -25
Answers
Answered by
drwls
Think of it as the difference of two perfect squares: (7y)^2 and 5^2. There is a special easy way to factor such cases.
If you don't know the trick, read:
(Broken Link Removed)
If you don't know the trick, read:
(Broken Link Removed)
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