Algebramedium · Past Paper
Roots of x^2 + 5x + 6 = 0 are α, β. Find α^2 + β^2.
A13
B25
C12
D7
✓ Correct Answer: A — 13
(α+β)^2 - 2αβ = (-5)^2 - 2(6) = 25 - 12 = 13.
Share this question
✓ Correct Answer: A — 13
(α+β)^2 - 2αβ = (-5)^2 - 2(6) = 25 - 12 = 13.
Share this question