evaluate without multiplying directly 97×93
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Answered by
2
97×93= 9021..
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happy932:
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Answered by
13
given question=>>
97×93
now answer
=> (90+7)(90+3)
Now using identity
(x+a)(x+b) = x^2 + (a+b)x+ ab
=>( 90)^2 + (7+3)90 + (7×3)
=> 8100 + 900 + 21
=>>9021
BE BRAINLY//
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