Ktoś jest w stanie rozpisać x1^4 + x2^4 i podstawić pod wzory vitae? :)))
Zrobię takie podstawienie:
x1 = a
x2 = b
a1^4 + x2^4 =
a^4 + b^4 =
(a²)² + (b²)² =
(a² + b²)² - 2a²b² =
[ (a + b)² - 2ab ]² - 2 * (ab)² =
[( -b/a)² - 2 * c/a ]² - 2 * (c/a)²
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Zrobię takie podstawienie:
x1 = a
x2 = b
a1^4 + x2^4 =
a^4 + b^4 =
(a²)² + (b²)² =
(a² + b²)² - 2a²b² =
[ (a + b)² - 2ab ]² - 2 * (ab)² =
[( -b/a)² - 2 * c/a ]² - 2 * (c/a)²