Question

7.Factoriza: P(x,y)=x^4-y^4

Answer 1

${x}^{4} - {y}^{4}$

$( {x}^{2} - {y}^{2} )( {x}^{2} + {y}^{2} )$
Factorizando, nos queda así:

$(x - y)(x + y)( {x}^{2} + {y}^{2} )$