how i can use roots in matlab

i need help to use roots function in matlab i have this

7x^4+5x^3=-4x-5

and i need to do it with the roots anyone can helpe me ?

[Bob Thompson]

Have you read the documentation on roots? I feel like it outlines how to use the function fairly clearly. Is there some specific problem you're having?

[Torsten]

Hint:

7x^4 + 5x^3 = -4x - 5

<->

7x^4 + 5x^3 + 0x^2 + 4x + 5 = 0

[ays ays]

thx :)

Answer 1

[Stephan]

RHS has to be zero, then put the coefficients in descending order into a vector - read here:

https://de.mathworks.com/help/matlab/ref/roots.html

p = [7 5 0 4 5]
result = roots(p)

[ays ays]

oh ok thx