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³√343 × 49 × √1/7 × √7 × (⁴√7)³=
7⅓*7²*(7)⁻²*7+½*7¾=
(potęgi dodajemy)
1/3+2-2+1/2+3/4=1/3+1/2+3/4=4/12+2/12+9/12=15/12=5/4
odp. =7 do potęgi 5/4