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Solve this (x-2y-z) ² |
Answer» ANSWER:-(a-b-c) ² = a² + b² + c² - 2AB + 2bc - 2ac (X-2y-z) ² = x ² + (2y)² + z² - 2×x×2y + 2×2y×z - 2×x×z = x² + 4y² + z² - 4xy + 4yz - 2xz |
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