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Question
Factorise.
ax + bx − ay − by
Sum
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Solution
The given expression is ax + bx − ay − by
= a × x + b × x − a × y − b × y
= x (a + b) − y (a + b)
= (a + b) (x − y)
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Chapter 12: Factorisation - EXERCISE 12.1 [Page 149]
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