Question

97 x 103 using identity​

Answer 1

using identify (a+b)(a-b) = a²-b²

(100+3)(100-3)

(100)²-(3)²

10000-9

9991

Answer 2

Hello ❤️

$97 = 100 - 3 \\ 103 = 100 + 3$

Hence ....

$97 \times 103 = (100 - 3) \times (100 + 3)$

Here It is in the form of ,

a² - b²= (a-b)×(a+b)

A = 100

B = 3

$(100 - 3) \times( 100 + 3) = {100}^{2} \times {3}^{2}$

$= 10000 \times 9$

$= 9991$

Here is your answer

Hope this helps you buddy ❤️✌️