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A. x² – 8x + 15
B. x² + 8x + 15
C. x² – 15x + 8
D. x² + 15x + 8

A. Three real roots
B. Two real roots
C. One real root
D. Complex roots

A. x² – 2x -1
B. x² -2x +1
C. x² +2x -1
D. x² +2x +1

A. 3, 5
B. 5, 3
C. 1, 15
D. -3, -5

A. (x + 2)(x + 4)
B. (x – 2)(x – 4)
C. (x + 1)(x + 8)
D. (x – 1)(x – 8)