Questão 2752408

𝑥 = 7 e 𝑥 = 3

𝑥 = \(-\frac{1}{7}\) \(+\frac{\sqrt{15}}{7}\) \(\frac{1}{7}+\frac{\sqrt{5}}{7}\)

𝑥 = − \(\frac{1}{2}+\frac{\sqrt{7}}{2}\)

𝑥 = − \(\frac{1}{2}+\frac{\sqrt{7}}{2}\) e 𝑥 = − \(\frac{1}{2}-\frac{\sqrt{7}}{2}\)

𝑥 = \(-\frac{1}{7}\) \(+\frac{\sqrt{15}}{7}\) e 𝑥 = − \(\frac{1}{7}-\frac{\sqrt{15}}{7}\)