Complex Numbers And Quadratic Equations

Matching exercise

    
Match the items on the right to the items on the left.
The equation has real and equal roots
The equation has rational and unequal roots
The equation has real and distinct roots
The equation has irrational and unequal roots
The equation has imaginary roots
D = 0
D is positive and perfect square
D is positive
D > 0
D < 0