Question

The roots of the equation 2x^2-6x+7=0  are

(a) real, unequal and rational (b) real, unequal and irrational (c) real and equal (d) imaginary 

Answer 1

(d) imaginary 

∵` D=(b^2-4ac)` 

=`(-6)^2-4xx2xx7` 

=`36-56` 

=`-20<0` 

Thus, the roots of the equation are imaginary