Question

ब्रैकेट में 82 का स्क्वायर माइनस ब्रैकेट अट्ठारह का स्क्वायर

Answer 1

Step-by-step explanation:

$82 {}^{2} - 18 {}^{2}$

$(82 - 18)(82 + 18)$

$54 \times 100 = 5400$

Answer 2

Step-by-step explanation:

☆ FIND:

Value of ${(82)}^{2} - {(18)}^{2}$

➡️$comparing \: with \: {a}^{2} - {b}^{2}$

we know that ,

$a{}^{2} - {b}^{2} = (a + b)(a - b)$

$(82) {}^{2} - (18) {}^{2} = (82 + 18)(82 -18 )$

$(82) {}^{2} - (18) {}^{2} = (100)(64)$

$= > 6400$