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1³ + 5² - 7²⁵ × 49¹⁵ ÷ 7⁵⁴ =0000000000


Răspuns :

1 + 25 - 7^25 x 7^30 ÷ 7^54 = 1 + 25 - 7^55 ÷ 7^54 = 1 + 25 - 7 = 26 - 7 = 19