Ex 8.1, 3 - Add the following (ii) a – b + ab, b – c + bc, c – a + ac - Ex 8.1

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Ex 8.1, 1 Add the following. (ii) a – b + ab, b – c + bc, c – a + acExpression are a − b + ab b − c + bc c − a + ac We put like terms below like terms ∴ Required sum = ab + bc + ac

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