factorise x^4-(x-z)^4
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=x⁴ - (x-z)⁴
=(x²)² - ((x-z)²)²
=(x²-(x-z)²)(x²+(x-z)²)
=(x²-(x²-2xz+z²))(x²+(x²-2xz+z²))
=(x²-x²+2xz-z²)(x²+x²-2xz+z²)
=(2xz-z²)(2x²-2xz+z²)
:)(: Hope This Helps :)(:
=(x²)² - ((x-z)²)²
=(x²-(x-z)²)(x²+(x-z)²)
=(x²-(x²-2xz+z²))(x²+(x²-2xz+z²))
=(x²-x²+2xz-z²)(x²+x²-2xz+z²)
=(2xz-z²)(2x²-2xz+z²)
:)(: Hope This Helps :)(:
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