Question

Descompune in factori ireductibili a expresiei: x la puterea 3 + x la puterea 2- x -1

Answer 1

X LA PUTEREA 2(X+1)-(X+1)=(X+1)(X LA PUTEREA2-1)=(X+1)(X+1)(X-1)

Answer 2

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