Question

Ada yg tau gimana caranya ngefaktorin ( x^2 + x + 1 ) ?

Answer 1

Hasilnya bilangan complex
(lihat gambar)

Answer 2

X^2 + x + 1 = 0            
X1,2=(-b +- √ b^2 - 4ac)/2a
       =(-1 +- √1 - 4) /2
       = (-1 +- √-3)/ 2
       =-1/2 +- √3.√-1
       =-1/2 +- √3 i
x1=-1/2+√3 i
x2=-1/2 - √3 i
(x+1/2-√3 i)(x+1/2+√3 i)