−110(7+109)-\frac{1}{10}(7+\sqrt{109})−101(7+109)
110(−7+109)\frac{1}{10}(-7+\sqrt{109})101(−7+109)
110(7−109)\frac{1}{10}(7-\sqrt{109})101(7−109)
110(7+109)\frac{1}{10}(7+\sqrt{109})101(7+109)