Question

state the value of the discriminant, D, and the number of roots for 7x^2+12x+6

Answer 1

D = b^2 - 4ac

here a = 7, b = 12 and c = 6

calculate and if
D>0 i.e positive then u have two distinct real roots
D=0 then u have two equal roots (same root repeated)
D<0 then u have no real roots (but u do have complex roots)