Roots of Equations Flashcards
1
Q
α + β
A
-b/a
2
Q
αβ
A
c/a
3
Q
αβγ
A
-d/a
4
Q
α + β + γ
A
-b/a
5
Q
βγ + γα + αβ
A
c/a
6
Q
α^2 + β^2
A
(α+β)^2 - 2αβ
sum squared - 2 x product
7
Q
α^2 + β^2 + γ^2
A
(α+β+γ)^2- 2(βγ+γα+αβ)
sum of roots squared - 2x sum of products
