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    				| 1. | (4a – 2b – 3c)2 का विस्तार कीजिए। | 
| Answer» (4a – 2b – 3c)2 = (4a)2 + (-2b)2 + (-3c)2 – 16ab + 12bc – 24ac = 16a2 + 4b2 + 9c2 – 16ab + 12bc – 24ac | |