Using suitable identities, evaluate the following. (9.7)^2- (0.3)… - Vidyadip

Question

Using suitable identities, evaluate the following.
$(9.7)^2- (0.3)^2$

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Answer

$(9.7)^2- (0.3)^2$
$= (9.7 + 0.3)(9.7 - 0.3)$
$= 10 \times 9.4$
$= 94$

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