Question

solve the question fast....
(x+1)^3 +(x-1)^3
plz it is urgent

Answer 1

${(x + 1)}^{3} + {(x - 1)}^{3}$
${x}^{3} + 1 + 3x(x + 1) + {x}^{3} - 1 - 3x(x - 1)$
${x}^{3} + 1 + 3 {x}^{2} + 3x + {x}^{3} - 1 - 3 {x}^{2} + 3x$
$2 {x}^{3} + 6x$