persamaan kuadrat 2x^2 + x + 5 mempunyai akar akar a dan B.Nilai a^2 + B^2=...

y = 2x² + x + 5

A + B = -b/a = -1/2
A × B = c/a = 5/2

A² + B²
= (A + B)² - 2AB
= 1/4 - 5
= (1 - 20)/4
= -19/4