Question

PILNE !!!

Rozłóż na czynniki : x ³ + x ² -x - 1

Answer 1

x ³ + x ² -x - 1 = x²(x + 1) - (x + 1) = (x² - 1)( x + 1) = (x - 1)(x +1)( x + 1) = (x - 1)(x + 1)²

Answer 2

x ³ + x ² -x - 1 = x²(x + 1) - (x + 1) = (x² - 1) ( x + 1) = (x - 1) (x +1) ( x + 1)