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18 supra 10-9 supra 5


Răspuns :

Răspuns:

= 18 supra 10 - 18 supra 10

= 0

[tex]\bf\dfrac{\ 18^{(2}}{10}-\dfrac{9}{5}=\dfrac{9}{5}-\dfrac{9}{5}=0[/tex]