Vieta's formulae for quadratics Flashcards
1
Q
A quadratic has the form:
A
ax² + bx + c = 0
2
Q
The roots of a quadratic are:
A
α and β
3
Q
α + β = ?
A
-b/a
4
Q
αβ = ?
A
c/a
5
Q
α² + β² = ?
A
(α + β)² - 2αβ
