Odpowiedź:
(a) 26 + 15√3
(b) 45 - 29√2
(c) 37 - 30√3
Szczegółowe wyjaśnienie:
(a) (2 + √3)^3:
(2 + √3)^3 = 2^3 + 3 * 2^2 * √3 + 3 * 2 * (√3)^2 + (√3)^3
= 8 + 12√3 + 18 + 3√3
= 26 + 15√3
(b) (3 - √2)^3:
(3 - √2)^3 = 3^3 - 3 * 3^2 * √2 + 3 * 3 * (√2)^2 - (√2)^3
= 27 - 27√2 + 18 - 2√2
= 45 - 29√2
(c) (1 - 2√3)^3:
(1 - 2√3)^3 = 1^3 - 3 * 1^2 * 2√3 + 3 * 1 * (2√3)^2 - (2√3)^3
= 1 - 6√3 + 36 - 24√3
= 37 - 30√3
Odpowiedzi to:
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Odpowiedź:
(a) 26 + 15√3
(b) 45 - 29√2
(c) 37 - 30√3
Szczegółowe wyjaśnienie:
(a) (2 + √3)^3:
(2 + √3)^3 = 2^3 + 3 * 2^2 * √3 + 3 * 2 * (√3)^2 + (√3)^3
= 8 + 12√3 + 18 + 3√3
= 26 + 15√3
(b) (3 - √2)^3:
(3 - √2)^3 = 3^3 - 3 * 3^2 * √2 + 3 * 3 * (√2)^2 - (√2)^3
= 27 - 27√2 + 18 - 2√2
= 45 - 29√2
(c) (1 - 2√3)^3:
(1 - 2√3)^3 = 1^3 - 3 * 1^2 * 2√3 + 3 * 1 * (2√3)^2 - (2√3)^3
= 1 - 6√3 + 36 - 24√3
= 37 - 30√3
Odpowiedzi to:
(a) 26 + 15√3
(b) 45 - 29√2
(c) 37 - 30√3