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4 la puterea 3/2 minus 1 la puterea 3/2?​

Răspuns :

[tex]4^{\frac{3}{2} } - 1^{\frac{3}{2} } = (2^{2})^\frac{3}{2} - 1 = 2^\frac{6}{2} -1 = 2^3-1 = 8-1 = 7[/tex]