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Efectueaza: -3supra2+5supra6(-2supra5)


Răspuns :

[tex] -\frac{3}{2} + \frac{5}{6} *(- \frac{2}{5} )= -\frac{3}{2}- \frac{1}{3} = -\frac{9}{6} - \frac{2}{6} = -\frac{11}{6} [/tex]