Evaluate the following using a suitable identity, without multiplying directly : 93^2
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=(100-7)^2
=(100)^2+(7)^2-(2x7x100)
=10000+49-1400
=8600+49
=8649
=(100)^2+(7)^2-(2x7x100)
=10000+49-1400
=8600+49
=8649
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