find the square root by long division method for 400
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√400=20
Step-by-step explanation: the square root of 400 by long division method. _____ _| 400 |_ 2 4.____ 000. 4 0 0. ______ _______
√400 = 20. 400 = 2 * 2 * 2 * 2 * 5 * 5. 400 = 2² * 2² * 5² 400 = (2 * 2 * 5)² 400 = 20² √400 = √20²
√400 = 20.
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