x⁴– 81
x⁵– y⁵
x⁵y⁵ + 64z⁵
x⁵ + 32
16x⁴ – 81y⁴
(x – y) (x⁴ + x³y + x²y² + xy³ +y⁴)
(x – 3)(x³ + 3x² + 9x + 27)
(2x – 3y)(8x³ + 12x²y + 18xy² + 27y³)
(x + 2)(x⁴ – 2x³ + 4x² – 8x + 16)
(xy + 2z)( x⁴y⁴ – x³y³z + x²y²z² – xyz³ +z⁴)
