evaluate the following by using suitable identities 97*93
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Answered by
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97*93
= (90+7)(90-7)
= (90)²-(7)²
= 8100-49
= 8051
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Answered by
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Step-by-step explanation:
Apply the Identity a2 - b2 = (a + b) ( a - b)
Now find the number in which if you add and subtract 2, the numbers of the question will match.
The no. is 95
95 + 2 = 97
95 - 2 = 93
So it is
( 95 + 2)(95 - 2)
(95)² - (2)²
9025 - 4
9021 is the answer of the Evaluation.
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