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

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asked May 3, 2019 170k views

1 vote

What is the value of the discriminant for the quadratic equation

d2− 7d + 8 = 0?
A. −56
B. 17
C. −1
D. −27

Mathematics
high-school

Dave Taubler asked

by Dave Taubler

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1 Answer

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d² - 7d + 8 = 0

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

$\text {Discriminant=} b^2 - 4ac$

$\text {Discriminant=} (-7)^2 - 4(1)(8) = 49 - 32 = 17$

Answer: 17 (Answer B)

Laurence Moroney answered May 7, 2019

by Laurence Moroney

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