Akar-akar persamaan kuadrat 2x²-3x-5=0

2x²-3x-5 = (2x-5) (x+1) 
x= 2/5 v x= -1

Bab Persamaan Kuadrat
Matematika SMP Kelas VIII

2x² - 3x - 5 = 0
2x² + 2x - 5x - 5 = 0
2x (x + 1) - 5 (x + 1) = 0
(2x - 5) (x + 1) = 0
2x - 5 = 0
2x = 5
x = 5/2

x + 1 = 0
x = -1

HP = { -1, 5/2 }