Question

$12.4 \times 11.6$
Slove using identity 3 of algebraic expression ​

Answer 1

Pr wo identity hai kaun si????

Answer 2

$143.84$

EXPLAINATION

GIVEN

⇒ 12.4 x 11.6

ALGEBRIC IDENTITY

⇒ $(x + a)(x - a) = x² - a²$

CALCULATION

$12.4 \times 11.6$

$= (12 + 0.4)(12 - 0.4)$

Using the above Identity

$= {12}^{2} - {0.4}^{2}$

$= 144 - 0.16$

$= 143.84$