Answer:
2^12 + 8^1/2 = 2^1/2 + (4 * 2)^1/2 = 2^1/2 + 2 * 2^1/2 = 3 * 2^1/2
Check: 3 * 2^1/2 = 4.24
2^1/2 + 8^1/2 = 1.414 + 2.828 = 4.24
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