Zadanie 13:
Oblicz iloraz:
a) sumy 3√27 - 2√12 - 4√75 przez √3
b) sumy 2∛128 - 2∛54 + 4∛16 przez ∛2
(3√27 - 2√12 - 4√75)/√3 = 3√27/√3 - 2√12/√3 - 4√75/√3 = 3√9 - 2√4 - 4√25 =
= 3x3 - 2x2 - 4x5 = 9 - 4 - 20 = - 15
(2∛128 - 2∛54 + 4∛16)/∛2 = 2∛128/∛2 - 2∛54/∛2 + 4∛16/∛2 =
= 2∛64 - 2∛27 + 4∛8 = 2x4 - 2x3 + 4x2 = 8 - 6 + 8 = 16 - 6 = 10
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(3√27 - 2√12 - 4√75)/√3 = 3√27/√3 - 2√12/√3 - 4√75/√3 = 3√9 - 2√4 - 4√25 =
= 3x3 - 2x2 - 4x5 = 9 - 4 - 20 = - 15
(2∛128 - 2∛54 + 4∛16)/∛2 = 2∛128/∛2 - 2∛54/∛2 + 4∛16/∛2 =
= 2∛64 - 2∛27 + 4∛8 = 2x4 - 2x3 + 4x2 = 8 - 6 + 8 = 16 - 6 = 10