Question

Am si eu nevoie la ajutor cu urm exercitiu care suna asa: Descompunerea in factori a expresiei (x la a 2 a -3x+1) la a 2 a-1=?​

Answer 1

E=(x²-3x+1)² - 1

Stim ca: a²-b²=(a-b)(a+b)

E= (x²-3x+1-1)(x²-3x+1+1)

E=( x²-3x)(x²-3x+2)

x²-3x=x(x-3)

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

E=x(x-3)(x-2)(x-1)