Cite

1. Aude, H. T. R. (1938). The Solutions of the Quadratic Equation Obtained by the Aid of the Trigonometry. National Mathematics Magazine, Vol. 13, No. 3, pp. 118-121.10.2307/3028750Search in Google Scholar

2. Bossé, M. J., Nandakumar, N. R. (2005). The factorability of quadratics: Motivation for more techniques (section A). Teaching Mathematics and its Applications, Vol. 24, No. 4, pp. 143-153.10.1093/teamat/hrh018Search in Google Scholar

3. Didis, M. G., Erbas, A. K. (2015). Performance and Difficulties of Students in Formulating and Solving Quadratic Equations with One Unknown. Educational Sciences: Theory and Practice, Vol. 15, No. 4, pp. 1137-1150.Search in Google Scholar

4. Dimian, G. C., Begu, L. S., Jablonsky, J. (2017). Unemployment and labour market mismatch in the European Union Countries, Zbornik radova Ekonomskog fakulteta u Rijeci: časopis za ekonomsku teoriju i praksu, Vol. 35, No. 1, pp. 13-44.Search in Google Scholar

5. Dumičić, K. (2015). Developing Forecasting Models for Unemployment Rate by Gender: Cross Countries Comparison. Proceedings of the World Statistics Congress – WSC ISI'2015, Rio de Janeiro, 2015. Available at http://www.isi2015.org/components/com_users/views/registration/tmpl/media/uploadedFiles/paper/2840/10592/PP-A10-P12-S.pdf [06 November 2019].Search in Google Scholar

6. Dumičić, K., Žmuk, B., Čeh Časni, A. (2017). Evaluating Forecasting models for Unemployment Rates by Gender in selected European Countries. Interdisciplinary Description of Complex Systems, Vol. 15, No. 1, pp. 16-35.10.7906/indecs.15.1.2Search in Google Scholar

7. European Commission (2019). Eurostat. Available at https://ec.europa.eu/eurostat/data/database [01 September 2019].Search in Google Scholar

8. Güner, P. (2017). High School Students’ Achievement of Solving Quadratic Equations. Bartın University Journal of Faculty of Education, Vol. 6, No. 2, pp. 447-467.10.14686/buefad.277494Search in Google Scholar

9. Heaton, H. (1896). A Method of Solving Quadratic Equation. The American Mathematical Monthly, Vol. 3, No. 10, pp. 236-237.10.1080/00029890.1896.11998825Search in Google Scholar

10. Henderson, D. W. (1994) Geometric Solutions of Quadratic and Cubic Equation. Pythagoras. Available at http://pi.math.cornell.edu/~dwh/papers/geomsolu/geomsolu.html#FOOTNOTE [17 September 2019]Search in Google Scholar

11. Hoehn, L. (1975). A more elegant method on deriving the quadratic formula. The Mathematics Teacher, Vol. 6, No. 5, pp. 442-443.10.5951/MT.68.5.0442Search in Google Scholar

12. Irving, R. (2013). Beyond the Quadratic Formula. Mathematical Association of America, Washington.10.5948/9781614441120Search in Google Scholar

13. Kotsopoulos, D. (2007). Unravelling student challenges with quadratics: A cognitive approach. Australian Mathematics Teacher, Vol. 63, No. 2, pp. 19-24.Search in Google Scholar

14. López, J., Robles, I., Martínez-Planell, R. (2016). Student’s understanding of quadratic equations. International Journal of Mathematical Education in Science and Technology, Vol. 47, No. 4, pp. 552-572.10.1080/0020739X.2015.1119895Search in Google Scholar

15. Maharaj, A. (2005). A Geometrical Introduction to the Method of Completing the Square. Learning and Teaching Mathematics, Vol. 2005, No. 2, pp. 7-9.Search in Google Scholar

16. Meyer, B., Tasci, M. (2015). Lessons for Forecasting Unemployment in the United States: Use Flow Rates, Mind the Trend, Federal Reserve Bank of Atlanta Working Paper Series, Working Paper 2015-1.10.26509/frbc-wp-201502Search in Google Scholar

17. Nebesniak, A. L., Burgoa, A. A. (2015). Developing the Vertex Formula Meaningfully. Mathematics Teacher, Vol. 108, No. 6, pp. 429-433.10.5951/mathteacher.108.6.0429Search in Google Scholar

18. Newey, W. K., West, K. D. (1987). A Simple, Positive Semi-Definite, Heteroscedasticity and Autocorrelation Consistent Covariance Matrix. Econometrica, Vol. 55, No. 3, pp. 703-708.10.2307/1913610Search in Google Scholar

19. Seares, F. H. (1945). Trigonometric solution of the quadratic equation. Publications of the Astronomical Society of the Pacific, Vol. 57, No. 339, pp. 307-309.10.1086/125759Search in Google Scholar