Question

Разложите на множители x^7-x^6-x+1

Answer 1

x^7-x^6-x+1= x^6(x-1)-(x-1)=(x^6-1)(x-1)

Answer 2

$x^7-x^6-x+1=(x^7-x^6)+(-x+1)= \\ \\ =x^6(x-1)-(x-1)=(x-1)(x^6-1)$