What is 144^2

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• A 20736
• B 20646
• C 20376
• D 20466

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Answer: A. 20736

144^2 = 144 x 144. Using (a + b)^2 with 140 and 4: 140^2 + 2 x 140 x 4 + 4^2 = 19600 + 1120 + 16 = 20736.

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