Question

factorise completely 16x4-81y⁴​

Answer 1

Answer:

=64-324y

= 340y

Step-by-step explanation:

Hope it will help you

Answer 2

Step-by-step explanation:

$16 {x}^{4} - 81 {y}^{4 } \\ {4}^{2} { {x}^{2} }^{2} - {9}^{2} { {y}^{2} }^{2} \\ (4 {x}^{2} ) {}^{2} - (9y) {}^{2} \\ (4 {x}^{2} + 9 {y}^{2} )(4 {x}^{2} - 9 {y}^{2} ) \\ (4 {x}^{2} + 9 {y}^{2} )( {2}^{2} {x}^{2} - {3}^{2} {y}^{2} ) \\ (4 {x}^{2} + 9 {y}^{2} ) (( {2x}) ^{2} - ( {3y)}^{2} ) \\ (4 {x}^{2} + 9 {y}^{2} )((2x + 3y)(2x - 3y)) \\ (4 {x}^{2} + 9 {y}^{2} )(2x + 3y)(2x - 3y))$