Question

factories
$27 {x}^{2} + y {3} + z {3} - 9xyz$
​

Answer 1

Answer:

27x³+y³+z³-9xyz

(3x)³+(y)³+(z)³-3×3x×y×z

(3x+y+z){(3x)²+(y)²+(z)²-3x×y-y×z-3x×z}

(3x+y+z)(9x²+y²+z²-3xy-yz-3xz)