Question

Bila x1 dan x2 persamaan kuadrat 3x²-2x-8=0, maka

Answer 1

semoga benar yaaa:))))))))))))))))

Answer 2

3x² - 2x - 8 = 0

X1.2 = -b ± √b² - 4ac /2a
X1.2 = -(-2) ± √(-2)² - 4 . 3 . (-8) /2 .3
X1.2 = 2 ± √4 - (-96) /6
X1.2 = 2 ± √100 /6
X1.2 = (2 ± 10)/6
X1 = (2 + 10)/6
X1 = 12/6
X1 = 2
dan
X2 = (2 - 10)/6
X2 = -8/6
X2 = -4/3
X2 = -1 1/3