Answer :
Using this formula b^2-4ac
a=3, b=8, c=4
8^2-4x3x4 = 64 - 48
=16
x>0 two roots
16>0 so two real roots
a=3, b=8, c=4
8^2-4x3x4 = 64 - 48
=16
x>0 two roots
16>0 so two real roots