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11-04-2018
Mathematics

contestada

What is the value of the discriminant for the quadratic equation
d2− 7d + 8 = 0?
A. −56
B. 17
C. −1
D. −27

Respuesta :

Аноним Аноним

11-04-2018

d² - 7d + 8 = 0

a = 1, b = -7 , c = 8

[tex]\text {Discriminant=} b^2 - 4ac [/tex]

[tex]\text {Discriminant=} (-7)^2 - 4(1)(8) = 49 - 32 = 17[/tex]

Answer: 17 (Answer B)

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