Jawabanmu

2014-02-23T21:48:44+07:00
X^2-2x+5
a = 1 ; b = -2 ; c = 5
X1,2 = (-b + √b²-4ac)/2a
       = (-(-2) + √(-2)²-4.1.5)/2.1
       = (2 + √4-20)/2
       = (2 + √-16)/2
p=X1= (2+√-16)/2
q=X2= (2-√-16)/2
p+2= ((2+√-16)/2)+2 = (6+√-16)/2
q+2 =((2-√-16)/2)+2 = (6-√-16)/2
(x+((6+√-16)/2))(x+((6-√-16)/2)
x²+(12/2)x+((36-(-16))/4)
x²+6x+13
2 3 2