How do you factor the expression $x^3 + y^3$ ?

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Answer 1 · 2016-04-23T09:47:53

$x^3+y^3=(x+y)^3-3xy(x+y)$
$=(x+y){(x+y)^2-3xy)}$
$=(x+y)(x^2+2xy+y^2-3xy)$
$=(x+y)(x^2-xy+y^2)$

How do you factor the expression x^3 + y^3x^3 + y^3?