12.1 ²× 7.9² solve using identities
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(12+.1)^2×(8-.1)^2
(12^2+0.1^2+2×12×0.1)(8^2+0.1^2-2×8×0.1)
(144+0.01+2.4)(64+0.01-1.6)
146.41×62.41
9137.4481
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(12+.1)^2×(8-.1)^2
(12^2+0.1^2+2×12×0.1)(8^2+0.1^2-2×8×0.1)
(144+0.01+2.4)(64+0.01-1.6)
146.41×62.41
9137.4481
Mark me brainlist and follow me
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