kak tolong bntu pr saya

A. x1=x1+1
x2=x2+1
x1+x2=-b/a
=-(-3)/1=3
x1.x2=c/a=2/1=2
Pkb
X1+X2=x1+1+x2+1
=(x1+x2)+2
=3+2=5
X1.X2=(x1+1)(x2+1)
=x1.x2+(x1+x2)+1
=2+3+1=6
Rumus pkb
x²-(x1+x2)x+x1.x2=0
x²-5x+6=0
Sepertinya kaya gitu..