The value of $72^{2} - 71^{2}$ is equal to

$145$

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$147$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$148$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$143$

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Solution

The correct option is D
$143$

The given expression is $72^{2} - 71^{2}$

$= 72^{2} - 71^{2}$
$= 72 + 71$
[ The difference of the squares of two consecutive natural numbers is their sum ]
$= 143$

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