Math, asked by divya2387, 1 year ago

12.1 ²× 7.9² solve using identities

Answers

Answered by lucky1829
9
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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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