# Chapter 4 Quadratic Functions and Factoring - 4.8 Use the Quadratic Formula and the Discriminant - 4.8 Exercises - Skill Practice - Page 297: 55

Option C

#### Work Step by Step

Using the equation for the discriminant, we find: $$(5)^2-4(2)(c) = -48 \\ -48 = -8c \\ c=6$$ Option C is correct.

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