Разложение на множители
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/ ___ 4 ___ ___ 4 ___\ / ___ 4 ___ ___ 4 ___\ / ___ 4 ___ ___ 4 ___\ / ___ 4 ___ ___ 4 ___\
/ 4 ___\ / 4 ___\ / 4 ___\ / 4 ___\ | \/ 2 *\/ 7 I*\/ 2 *\/ 7 | | \/ 2 *\/ 7 I*\/ 2 *\/ 7 | | \/ 2 *\/ 7 I*\/ 2 *\/ 7 | | \/ 2 *\/ 7 I*\/ 2 *\/ 7 |
1*\c + \/ 7 /*\c - \/ 7 /*\c + I*\/ 7 /*\c - I*\/ 7 /*|c + ----------- + -------------|*|c + ----------- - -------------|*|c + - ----------- + -------------|*|c + - ----------- - -------------|
\ 2 2 / \ 2 2 / \ 2 2 / \ 2 2 /
$$\left(c - \sqrt[4]{7}\right) 1 \left(c + \sqrt[4]{7}\right) \left(c + \sqrt[4]{7} i\right) \left(c - \sqrt[4]{7} i\right) \left(c + \left(\frac{\sqrt{2} \cdot \sqrt[4]{7}}{2} + \frac{\sqrt{2} \cdot \sqrt[4]{7} i}{2}\right)\right) \left(c + \left(\frac{\sqrt{2} \cdot \sqrt[4]{7}}{2} - \frac{\sqrt{2} \cdot \sqrt[4]{7} i}{2}\right)\right) \left(c - \left(\frac{\sqrt{2} \cdot \sqrt[4]{7}}{2} - \frac{\sqrt{2} \cdot \sqrt[4]{7} i}{2}\right)\right) \left(c - \left(\frac{\sqrt{2} \cdot \sqrt[4]{7}}{2} + \frac{\sqrt{2} \cdot \sqrt[4]{7} i}{2}\right)\right)$$
(((((((1*(c + 7^(1/4)))*(c - 7^(1/4)))*(c + i*7^(1/4)))*(c - i*7^(1/4)))*(c + (sqrt(2)*7^(1/4)/2 + i*sqrt(2)*7^(1/4)/2)))*(c + (sqrt(2)*7^(1/4)/2 - i*sqrt(2)*7^(1/4)/2)))*(c - (sqrt(2)*7^(1/4)/2 + i*sqrt(2)*7^(1/4)/2)))*(c - (sqrt(2)*7^(1/4)/2 - i*sqrt(2)*7^(1/4)/2))