Sederhanakan x6 – y6
Kita harus mengevaluasi x 6 – y 6
Larutan
(x^{6}-y^{6}= (x^{2})^{3} – (y^{2})^{3})
=(x^{2}-y^{2}((x^{2})^{2})+(y^{2})^{2}+ x^{2}. y^{2 }))
=(x^{2}-y^{2}((x^{4})+ y^{4}+ x^{2}. y^{2}))
=((xy)(x+y)(x^{4}+ y^{4}+ x^{2}. y^{2}))
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