3 votes 3 votes Let $c$ be a positive real number for which the equation $$ x^{4}-x^{3}+x^{2}-(c+1) x-\left(c^{2}+c\right)=0 $$ has a real root $\alpha$. Prove that $c=\alpha^{2}-\alpha$. Others isi2020-pcb-mathematics descriptive + – admin asked Aug 8, 2022 • edited Aug 25, 2022 by Lakshman Bhaiya admin 253 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
3 votes 3 votes The key part is writing the equation in terms of c [ Jiren ] answered Aug 23, 2022 [ Jiren ] comment Share Follow See all 0 reply Please log in or register to add a comment.