A. Positive
B. Negative
C. Zero
D. Impossible
A. > 0
B. < 0
C. = 0
D. Undefined
A. -b/2a
B. b/2a
C. √(b² − 4ac)
D. 2a/b
A. Line
B. Parabola
C. Circle
D. Ellipse
A. Zero
B. One
C. Two
D. Negative
A. (x − r)(x − s) = 0
B. (x + r)(x + s) = 1
C. x = r²
D. x² = a
A. Cubic formula
B. Quadratic formula
C. Factor rule
D. None
A. Conjugates
B. Equal
C. Only real
D. Impossible
A. Cube
B. Square
C. Root
D. Constant
A. One root
B. At most two roots
C. Three roots
D. No roots