1.

Factorise:x⁴-(x-z)⁴​

Answer»

Step-by-step explanation:

x4-(x-z)4

x4-(x2-2xz+z2)2

x4 - (x4-2x3z+x2z2-2x3z+4x2z2-2xz3+x2z2-2xz3+z4)

COMBINE LIKE terms

x4 - (x4-4x3z+6x2z2-4xz3+z4)

4x3z-6x2z2+4xz3-z4



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