Răspuns :
Explicație pas cu pas:
E(x)=x³+2x²-x-2=>
E(x)=x²(x+2)-(x+2)=>
E(x)=(x+2)(x²-1)=>
E(x)=(x+2)(x+1)(x-1)
x³+2x²-x-2
x²(x+2) - (x+2)
(x+2)(x²-1)
(x+2)(x+1)(x-1)
Explicație pas cu pas:
E(x)=x³+2x²-x-2=>
E(x)=x²(x+2)-(x+2)=>
E(x)=(x+2)(x²-1)=>
E(x)=(x+2)(x+1)(x-1)
x³+2x²-x-2
x²(x+2) - (x+2)
(x+2)(x²-1)
(x+2)(x+1)(x-1)