Find the discriminant of the quadratic equation 3x2−5x+2=0 and hence, find the nature of the roots.
1, two distinct real roots
−1, no real roots
−1, two distinct real roots
0, two equal roots
D=b2−4ac =(−5)2−4×3×2 =1>0 ∴D=1>0 ⇒ Two distinct real roots.