allerySolve x² − 8x + 16 = 0.
Ax = 2, 4
Bx = 4, −4
Cx = 4, 4
Dx = 8, 16
Answer & Solution
Correct answer: C. x = 4, 4
Perfect square: (x − 4)² = 0. Single root x = 4 (counted twice).
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