Răspuns :
(x+2)(x-3)(x-3)
= (x+2)(x-3)^{2}
= (x+2)(x^{2}-2*3x+3^{2})
= (x+2)(x^{2}-6x+9)
= x^{3}-6x^{2}+9x+2x^{2}-12x+18
= x^{3}-4x^{2}-3x+18
= (x+2)(x-3)^{2}
= (x+2)(x^{2}-2*3x+3^{2})
= (x+2)(x^{2}-6x+9)
= x^{3}-6x^{2}+9x+2x^{2}-12x+18
= x^{3}-4x^{2}-3x+18