Question

81 x power 4 - 16 y power 4​

Answer 1

Step-by-step explanation:

$81 {4}^{2}$

Answer 2

Answer:

$= 81 {x}^{4} - 16 {y}^{4}$

$= { ({9x}^{2} )}^{2} - {( {4y}^{2}) }^{2}$

$= (9 {x}^{2} + 4 {y}^{2} )(9{x}^{2} - 4{y}^{2} )$

$= (9 {x}^{2} + 4 {y}^{2} )(3x - 2y)(3x + 2y)$

Step-by-step explanation:

Hope it will help you

Jai Hind