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Use the Discriminant to Classify Quadratic Roots
Grade Level
Praxis Core
5165.051 Use the Discriminant to Classify Quadratic Roots
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For ax
2
+ bx + c = 0 with rational coefficients and a != 0, which discriminant value guarantees two distinct real irrational roots?
A
D = 0
B
D = -9
C
D = 25
D
D = 18
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