Question

$(a + b) \times (a - b)$

Answer 1

Hey Mate....... here is ur answer -
It's an identity - ( a + b ) ( a - b ) = a square - b square.
Hope this helps :-)

Answer 2

$\blue{\huge{\boxed{\star\: Solution \: \star}}}$

==>
$\boxed{(a + b) \times (a - b) = a {}^{2} - b {}^{2} }$


===> simplification

===> a ( a -b) + b ( a- b)

===>
$a {}^{2} - ab + ab - b {}^{2}$

==>
$a {}^{2} \cancel{ - ab + ab} \: + b {}^{2}$

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

===>
$\red{ \boxed{ \underline{a {}^{2} - b {}^{2} }}}$