Answer:
x=−2 or x= −2/5 or x=2
Explanation:
Let's solve your equation step-by-step.
5x3+2x2−20x−8=0
Step 1: Factor left side of equation.
(x+2)(5x+2)(x−2)=0
Step 2: Set factors equal to 0.
x+2=0 or 5x+2=0 or x−2=0
x=−2 or x=−2/5 or x=2
I have no idea if this is right- I used an equations calculator.
