Question

simplify:6x-x^3-6y+y^3

Answer 1

Step-by-step explanation:

$6x - {x}^{3} - 6y + {y}^{3}$

$= 6(x - y) - ( {x}^{3} - {y}^{3} )$

$= 6(x - y) - (x - y)( {x}^{2} + xy + {y}^{2} )$

$= (x - y)(6 - {x}^{2} - xy - {y}^{2} )$