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प्रश्न
Factorise : (x + y)(a + b) + (x - y)(a + b)
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उत्तर
(x + y)(a + b) + (x - y)(a + b) = (a+b) (x + y + x - y)
= (a + b) (2x)
= 2x (a + b)
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संबंधित प्रश्न
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