Odpowiedź:
1.
- 4√14/5√7 =( - 4√14 * √7)/(5√7 * √7) = - 4√(14 * 7)/(5 * 7) = - 4√98/35
2.
a)
4∛5 * 3(∛5)² = 4∛5 * 3 * ∛5² = 4∛5 * 3∛25 = 4 * 3 * ∛(5 * 25) =
= 12∛125 = 12 * 5 = 60
b)
[- 6∛(- 4)]² * ∛(- 4) = - 6∛(- 4)² * ∛(- 4) = - 6∛16 * ∛(- 4) = - 6∛(- 64) =
= - 6 * (- 4) = 24
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Odpowiedź:
1.
- 4√14/5√7 =( - 4√14 * √7)/(5√7 * √7) = - 4√(14 * 7)/(5 * 7) = - 4√98/35
2.
a)
4∛5 * 3(∛5)² = 4∛5 * 3 * ∛5² = 4∛5 * 3∛25 = 4 * 3 * ∛(5 * 25) =
= 12∛125 = 12 * 5 = 60
b)
[- 6∛(- 4)]² * ∛(- 4) = - 6∛(- 4)² * ∛(- 4) = - 6∛16 * ∛(- 4) = - 6∛(- 64) =
= - 6 * (- 4) = 24