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5 votes
What is the discriminant of the polynomial below 2x^2+5x-8

User Skurty
by
6.6k points

2 Answers

4 votes

The answer to this question is-

89

User Krupesh Anadkat
by
7.4k points
4 votes

Answer:

89 2 irrational roots

Explanation:

The discriminant Is b²-4ac when the equation is in the form

ax²+bx+c so in the equation

a=2 b=5 and c=-8

plug into the equation for the discriminant

so 5²-4(2)(-8)

25-(-64) 2 negatives make a positive so

25+64=89

since 89 isn’t a perfect square 2 irrational roots

User Tom Yeh
by
6.6k points
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