How to use the discriminant to find out what type of solutions the equation has for $7x²+6x+2=0$ ?

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Answer 1 · 2015-05-17T02:31:49

Discriminant D = d^2 = b^2 - 4ac = 36 - 56 = - 20 < 0. There are no real roots (no x-intercepts). There are 2 complex roots.

How to use the discriminant to find out what type of solutions the equation has for 7x²+6x+2=07x²+6x+2=0?