Question

CARILAH HIMPUNAN PENYELESAIAN DARI PERSAMAAN KUADRAT BERIKUT:

3x^2-2x+4=0

Answer 1

3x²-2x+4 = 0

x² - 2/3 x + 4/3 = 0

x² - 2/3 x + (2/(2.1.3))² = -4/3 +(2/(2.1.3))²

(x - 1/3)² = -4/3 + 1/9

(x - 1/3)² = 1/9 . (-12+1)

x = 1/3 ± 1/3 √(-11) = 1/3 ( 1 ± √(-11))

x = 1/3 (1 +  √11 . i) atau 1/3 (1 - √11 . i)

i = √-1  => i² = -1