2 votes 2 votes The sum of the roots of the equation $x^{5}+3x^{2}+7=0$ is. $-3$ $\frac{3}{7}$ $\frac{-1}{7}$ $0$ Quantitative Aptitude tifrmaths2010 + – makhdoom ghaya asked Oct 11, 2015 edited Aug 18, 2020 by soujanyareddy13 makhdoom ghaya 494 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 5 votes 5 votes Here in this question sum of roots $=$ coefficient of $x^4$. So, sum $=0$. In general, sum is $-1 \times$ coefficient of $x^{\text{degree }-1}$ in polynomial. Pooja Palod answered Oct 12, 2015 Pooja Palod comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes http://www.mathwarehouse.com/quadratic/roots/formula-sum-product-of-roots.php simple formula is -b/a= -0/1=0 Prashant. answered Apr 11, 2016 Prashant. comment Share Follow See all 0 reply Please log in or register to add a comment.