Question

Using the identity find the product of ( x − 2y ) ( x + 2y ) ( x2 + 4y2 )

Answer 1

Using the identity find the product of ( x − 2y ) ( x + 2y ) ( x2 + 4y2 )

=(X²-(2Y)²) (X²+4Y²)

=X²-4Y²(X²+4Y²)

=(X²)²-(4Y²)²

=X⁴-16Y⁴