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(12√2)² = (12√2)(12√2) (12√2)² = 12. 12. √2. √2 (12√2)² = 144. 2 = 288.

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(12√2)² = (12√2)(12√2)

(12√2)² = 12.

12. √2.

√2

(12√2)² = 144.

2 = 288.