Question

factorise ( x + y) ^3 - ( x^3 +y^3)​

Answer 1

Answer:

$( {x + y})^{3} - ({x}^{} + {y}^{3} ) \\ = {x}^{3} + {y}^{3} + 3xy(x + y) - {x}^{3} - {y}^{3} \\ = 3xy(x + y) \: are \: required \\ \: factors.$