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Descompuneti in factori polinoamele
a) [tex] X^{2}-3X-10[/tex]
b)[tex] 3X^{2}-5Y[/tex]
c)[tex] X^{4}-2X ^{2}+ X^{3}-2X[/tex]


Răspuns :

[tex]x^2-3x-10= x^2 +2x-5x-10 =x(x+2)-5(x+2) =(x+2)(x-5)[/tex]