Question

Evaluate the discriminant of 3x2 + 2x + 1 = 0. Tell how many solutions the equation has and whether the solutions are real or imaginary.

Answer 1

Ok, the discriminant is b - 4ac. Your a is 3, your b is 2 and your c is 1. Let's do that math first and then look at the result. 2 - 4(3)(1) = -10. Ok, the discriminant is negative. Here are the rules for that: