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Scrieti ca o singura putere; A{-2 supra5 la puterea4 ori [ 2 supra5 la puterea 3

Răspuns :

(-2/5)⁴·(2/5)³=
16/625 · 2³/5³=
2⁴/5⁴ · 2³/5³=
2⁷/5⁷ sau (2/5)⁷
(-  \frac{2}{5} )^{4} * ( \frac{2}{5}) ^{3} = \frac{2}{5} ^{4+3} = \frac{2}{5} ^{7}