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Question
Divide:
ax2 − ay2 by ax + ay
Sum
Solution
\[\frac{a x^2 - a y^2}{ax + ay}\]
\[ = \frac{a( x^2 - y^2 )}{a(x + y)}\]
\[ = \frac{a(x + y)(x - y)}{a(x + y)}\]
\[ = x - y\]
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