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Algebra
easy · Past Paper
Questions
Mathematics
Algebra
Quadratic Equations
The discriminant of x^2 - 6x + 9 = 0 is:
A
0
B
12
C
36
D
-36
✓ Correct Answer: A — 0
D = (-6)^2 - 4(1)(9) = 36 - 36 = 0.
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