Question

find this answer!!!!!!!!​

Answer 1

$LHS:x^3+y^3$

From Formula : ( x + y )³ = x³ + y³ + 3xy ( x + y)

So, x³ + y³ = ( x + y )³ - 3xy ( x + y)

x³ + y³ = ( x + y ) [ ( x + y )² - 3xy ]    { Taking ( x + y ) common }

x³ + y³ =  ( x + y ) [ x² + y² + 2xy - 3xy ]

x³ + y³ =  ( x + y ) [ x² + y² - xy ]

Hence, proved .