Question

FACTORISE 27y cube + 125z cube

Answer 1

Hey user

Here is your answer :-

$27 {y}^{3} + 125 {z}^{3} \\ \\ = {(3y)}^{3} + {(5z)}^{3 } \\ \\ according \: to \: the \: identity \: {x}^{3} + {y}^{3} = (x + y)( {x}^{2} - xy + {y}^{2} ) \\ \\ = (3y + 5z)( {(3y)}^{2} - (3y)(5z) + {(5z)}^{2}) \\ \\ (3y + 5)(9 {y}^{2} - 15y + 25 {z}^{2} )$

thank you.

Answer 2

Answer:

1. Factories 27ycube +125z cube