Question

solve fast please please​

Answer 1

Answer:

To evaluate this , use the identity

(x^3 - y^3)/(x^2 + xy + y^2) =

=> (x - y)(x^2 + xy + y^2)/(x^2 + xy + y^2)

=> x - y [ x^2 + xy + y^2 cancels out ]

therefore LHS

(59 × 59 × 59 - 9 × 9 × 9)/(59 + 59 - 59× 9+9+9)

= 59 - 9 = 50 = RHS [ a = 59 and b = 9 ]