Question

Factorise 64x³+y³+z³-12xyz

Answer 1

Step-by-step explanation:

a³ + b³ + c³ - 3abc = ( a + b + c ) ( a² + b² + c² - ab - bc - ca )

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now

64x³ + y³ - z³ + 14xyz

= ( 4x )³ + y³ + ( - z )³ - 3 . 4x . y . ( -z )

= ( 4x + y - z ) ( 16x² + y² + z² - 4xy + yz + 4xz)

Thank you..