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(X^2+3x)(x^2+3x+9)+14

Răspuns :

Răspuns:

[tex]=x^{4} +3x^{3}+9x^{2} +3x^{3}+9x^{2}+27x+14\\=x^{4}+6x^{3}+18x^{2} +27x+14\\\\vladmarian200505[/tex]