Question

X
verify: x² - y² = (x-4)
(x² + xy + y ²)​

Answer 1

Answer:

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

RHS

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

= x^3 + x^2y + xy^2 - x^2y - xy^2 - y^3

= x^3 - y^3

Therefore LHS = RHS