Сократите дробь:

3p^2+p-2 / 4-9p^2

3p^2+p-2=0

D=1+4*3*2=25

p1 = (-1+5) / 6=2/3

p2 = (-1-5) / 6=-1

3p^2+p-2=3 (p-2/3) (p+1)

3p^2+p-2 = (3p-2) (p+1)

(3p-2) (p+1) / (4-9p^2) = (3p-2) (p+1) / (2-3p) (2+3p) = - (p+1) / (3p+2).