Question

(a+b)(a-b)= think before u answer

Answer 1

(A+B)(A-B)=A(A-B)+B(A-B)
(A+B)(A-B)=A^2-AB+BA-B^2
(A+B)(A-B)=A^2-B^2
hence proved.

Answer 2

it is a property...

(a+b)(a-b) = $a^2 -b^2$
________________________

proof :-

(a+b)(a-b) 

$a^2 -ab + ba -b^2$

$a^2 -b^2$

i hope this will help you



-by ABHAY