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descompuneti in factori daca e posibil expresia a)x2-10x+21; b)6x2-11x+3 c)3x2+7x-6

Răspuns :

a)[tex] x^{2} -10x+21=(x-3)(x-7)[/tex]
b)[tex]6 x^{2} -11x+3=6(x- \frac{1}{3})(x- \frac{3}{2})=(3x-1)(2x-3) [/tex]
c)[tex]3 x^{2} +7x-6=3(x- \frac{2}{3})(x+3)=(3x-2)(x+3) [/tex]