factorise x^4(y-z) +y^4(z-x) +z^4(x-y)
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Step-by-step explanation:
z, x, y],[ z^2,x^2,y^2],[z^4,x^4,y^4]|
=|[x, y, z],[ x^2,y^2,z^2],[x^4,y^4,z^4]|
=|[x^2,y^2,z^2],[x^4,y^4,z^4],[x, y, z]|`
=x y z (x-y)(y-z)(z-x)(x+y+z)
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