Question

The value of ( 9+√15) (9-√15) is
step by stem explanation....
and answer for this also: (125) -1/3=
step by step explanation​

Answer 1

Step-by-step explanation:

$\tt \red{ \bull \leadsto \quad(9 + \sqrt{15} )(9 - \sqrt{15}) }$

$\tt \pink{ \bull \leadsto \quad {(9)}^{2} - { (\sqrt{15} )}^{2} }$

$\tt \blue{ \bull \leadsto \quad81 - 15}$

$\green{\boxed{ \boxed{\boxed{\tt \purple{ \boxed{\xcancel{\bull }}\leadsto \quad66}}}}}$