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(10 la puterea -10laputerea 9):(10la puterea 9-10la puterea 8)

Răspuns :

[tex] (10^{10} - 10^{9}): (10^{9}-10^{8}) = 10^{9}(10^{1}-1):10^{8}(10^{1}-1) = 10^{9-8}=10. [/tex]