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Descompuneti in factori expresia: [tex](x+2)^{3} -4(x+2)[/tex]

Răspuns :

[tex]\it (x+2)^3-4(x+2)=(x+2)[(x+2)^2-4]=(x+2)[(x+2)^2-2^2]=\\ \\ =(x+2)(x+2-2)(x+2+2)=(x+2)\cdot x\cdot(x+4)=x(x+2)(x+4)[/tex]