What exactly are u chatting over it's just the sum in the roots is -b/a which is 21 and also the solution on the roots is 91 (-d/a) which u can address and variety an equation to receive alpha or beta then uncover another one then u hold the roots. https://case-study-solution06383.blogzag.com/79314645/the-single-best-strategy-to-use-for-case-study-writing-help