use the prime factor method to find square root 400
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400= 2*2*2*2*5*5
400= 2²*2²*5²
so ✓400 = 2*2*5
✓400 = 20
hope this would help you.
400= 2²*2²*5²
so ✓400 = 2*2*5
✓400 = 20
hope this would help you.
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