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

Answer is in the photo. I can't attach it here, but I've uploaded it to a file hosting. link below! Good Luck!

cutt.ly/Kzv78uJ

x - -5.78526086, -1.50769051, 2.29295138

Step-by-step explanation:

Try to graph each side of the equation. The solution Is probably the x-value of the point of intersection. Sorry if this is wrong I tried my best!

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

add an image !

step-by-step explanation: