Question

whats the ans factorize

Answer 1

$2(16x {}^{4} - y {}^{4} ) = 2(4x {}^{2} + y {}^{2} )(4x {}^{2} - y {}^{2} ) \\ = 2(4x {}^{2} + y {}^{2} )(2x + y)(2x - y)$
$64x {}^{2} y {}^{2} - 1 =( 8xy + 1)(8xy - 1)$

Answer 2

HERE IS YOUR ANSWER.SEE ABOVE.