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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. One root
B. At most two roots
C. Three roots
D. No roots

A. (-2, -3)
B. (2, 3)
C. (-1, -3)
D. (1, -2)