Question

प्रश्न-9. सरल कीजिए।
(5+7)x (5-7)​

Answer 1

Using ( a + b ) × ( a - b ) =

$a {}^{2} - b {}^{2}$

$5 {}^{2} - 7 {}^{2}$

$25 - 49 = - 24$

Hope it helps to u ✌️....