Which of the following represents the set of possible rational roots for the polynomial shown below? x^3+5x^2-8x-20=0

x - -5.78526086, -1.50769051, 2.29295138

Step-by-step explanation:

graph each side of the equation. the solution si the x-value of the point of intersection.

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)