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Ex 12.2, 3 - Chapter 12 Class 7 Algebraic Expressions - Part 4

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Ex 12.2, 3 Subtract: (iv) a (b – 5) from b (5 – a) b (5 – a) – a (b – 5) = 5b – ab – ab + 5a = 5a + 5b – ab – ab = 5a + 5b – ab (1 + 1) = 5a + 5b – ab (2) = 5a + 5b – 2ab

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