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How to find the number of real and distinct roots of a function and if possible how to find these roots? Give an example. Find the number of real and distinct roots of the function f(x) => x^8 + x^7 + x^5 + x^4 + 5 x + 8 = 0

Note by Abhishek Mohapatra 5 years, 2 months ago

Easy Math Editor

*italics*

_italics_

**bold**

__bold__

- bulleted- list

1. numbered2. list

paragraph 1paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)

> This is a quote

This is a quote

# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

2 \times 3

2^{34}

a_{i-1}

\frac{2}{3}

\sqrt{2}

\sum_{i=1}^3

\sin \theta

\boxed{123}

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This has no real roots(Checked by computational method)

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What is computational method?

i think it has relation with the Descartes Rule of signs, but it's hard to find the roots.

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Easy Math Editor

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

## Comments

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TopNewestThis has no real roots(Checked by computational method)

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What is computational method?

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i think it has relation with the Descartes Rule of signs, but it's hard to find the roots.

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