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CUET
General Test
Quantitative Reasoning
Simplification
The factorisation of ax + bx – ay – by is
(x – y)(a + b)
(x + y)(a + b)
(x – y)(a – b)
(x + y)(a – b).
ax + bx – ay – by
= x ( a + b ) - y ( a + b )
= ( x - y ). ( a + b)