Exercise 5.2 1. Add like terms and express as an (i) -4xy + xy + +10xy 3 (iii) 5x2 – 3x2 – 2 + 6x2 2. Add by Column method (i) x - 2y + z, 5y - 2x + 2z, 2z - 4x (ii) 2x - 3y + 4z, 5x + 2y – 5z
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there is no explanation for it, I have done it orally
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