Akar aakar daru x2-3x-2=0 adalah

Langsung aja y

x² - 3x - 2 = 0
a = 1
b = -3
c = -2

X1,2 = (-b ± √b² - 4ac) / 2a
X1,2 = (3±√(-3)² - 4.1.(-2) / 2.1
X1,2 = (3±√9+8) / 2

X1 = (3+√17) / 2
X2 = (3-√17) /2

Semoga berguna +_+

Bab Persamaan Kuadrat
Matematika SMP Kelas VIII

x² - 3x - 2 = 0
a = 1; b = -3; c = -2

rumus abc
x12 = (-b +- √(b² - 4 . a . c))/(2a)
x12 = (-(-3) +- √((-3)² - 4 . 1 . (-2))/(2 . 1)
x12 = (3 +- √17)/2

x1 = (3 + √17)/2

x2 =(3 - √17)/2