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Question
Factorize each of the following expressions:
ax + ay − bx − by
Solution
\[ax + ay - bx - by\]
\[ = (ax + ay) - (bx + by) [\text{ Grouping the expressions }]\]
\[ = a(x + y) - b(x + y)\]
\[ = (a - b)(x + y) [\text{ Taking }(x + y)\text{ as the common factor }]\]
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