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Factorise the following expression X square + 2 X Y + Y square minus A square + 2 a b minus b square |
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Answer» (x+y)² - (a-b)² Step-by-step EXPLANATION: x² +2xy+y²-a²+2ab - b² (x+y)² -a²+2ab-b² -a²+2ab-b² can ALSO be EXPRESSED as a2-2ab + b² = (x+y)² + (a-b)² |
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