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Ex 12.2, 2 - Chapter 12 Class 7 Algebraic Expressions - Part 7

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Ex 12.2, 2 Add: (vii) 4x2y, – 3xy2, –5xy2, 5x2y 4x2y + (– 3xy2) + (– 5xy2) + 5x2y = 4x2y – 3xy2 – 5xy2 + 5x2y = 4x2y + 5x2y – 3xy2 – 5xy2 = x2y (4 + 5) + xy2 (–3 – 5) = x2y (9) + xy2 (–8) = 9x2y – 8xy2

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