qdodu
qdodu
28-09-2017
Mathematics
contestada
Factor the following x^2/81- y^2/100
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sarahest2003
sarahest2003
28-09-2017
The answer is (x/9+y/10)(x/9-y/10)
Steps:
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altavistard
altavistard
28-09-2017
This expression is the difference of two squares.
It can be rewritten as (x/9)^2 - (y/10)^2.
The factors are [(x/9) - (y/10)] [(x/9) + (y/10)].
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