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BigorU [14]
3 years ago
9

What is the discriminant of the polynomial below 2x2 + 5x - 8?

Mathematics
2 answers:
mihalych1998 [28]3 years ago
7 0

Answer:

The discriminant of the given polynomial is 89.

Step-by-step explanation:

The given polynomial is

P(x)=2x^2+5x-8            .... (1)

If a polynomial is defined as

P(x)=ax^2+bx+c            .... (2)

then the discriminant of the polynomial is

D=b^2-4ac

From (1) and (2), we get

a=2,b=5,c=-8

The discriminant of the given polynomial is

D=(5)^2-4(2)(-8)

D=25+64

D=89

Therefore the discriminant of the given polynomial is 89.

larisa [96]3 years ago
3 0
The discriminant is 89
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3 years ago
A company manufactures keyboards for desktop and laptop computers. The desktop keyboard contains 105 keys and the laptop keyboar
Luba_88 [7]

The company can produce 20 desktop keyboards and 10 laptop keyboards

Step-by-step explanation:

A company manufactures keyboards for desktop and laptop computers

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Assume that the company can produce x desktop keyboards and

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∵ company can produce y laptop keyboards

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Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

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you should get this

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