Question

factorize x^4-(x-z)^4​

Answer 1

x^4-(x-z)^4

= (x² )² - {( x - Z)²}

= (x² + (x - z)²) (x ² - (x -z)²)

= (x² + x² - 2xz + z² ) (x+x-z) (x-x+z)

= (2x²-2xz+z²) (2x-z) (z)