The roots of the equation 2x2 - 6x + 7 = 0 are
For the given equation 2x2 - 6x + 7 = 0
a = 2 b = - 6 c = 7
D = b2 - 4ac
= ( - 6)2 - 4.2.7
= 36 – 56 = - 20 < 0
Thus the roots of equation are imaginary.