Question

X to the fourth power minus Y to the fourth power

Answer 1

`(x - y) * (x + y)( {x }^(2) + {y}^(2) )`

Explanation:

`(x ^(2) - y ^(2) ) * (x ^(2) + y ^(2) )`

`({x} - y) * (x + y) * {x }^(2) + y ^(2) )`