[tex]2x^2+x-6=0
a=2
b=1
c=-6
delta=b^2-4ac = 1^2-4*2*(-6)=1+48=49
[/tex]
[tex]x1= \frac{-1+7}{4}= \frac{6}{4}= \frac{3}{2}
[/tex]
[tex]x2= \frac{-1-7}{4}= \frac{-8}{4}=-2 [/tex]
Conform formulei [tex]a(x-x1)(x-x2)[/tex]
[tex]2(x- \frac{3}{2})(x+2) [/tex]
