72536
Figure " 5 shows the difference between ( i ) " a direct evaluation using the quadratic formula ( accurate when the roots are near each other in value ) and ( ii ) " an evaluation based upon the above approximation of Vieta 's formulas ( accurate when the roots are widely spaced ) .
 Vieta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vieta