How to use the discriminant to find out what type of solutions the equation has for #7x²+6x+2=0#?
1 Answer
May 17, 2015
Discriminant D = d^2 = b^2 - 4ac = 36 - 56 = - 20 < 0. There are no real roots (no x-intercepts). There are 2 complex roots.
