Find all complex solutions (real and non-real). (Enter your answers as a comma-separated list.) x3 8x2 21x 20

The answer is "non-real solution: "i-3 and -i-3" and real solution is -2".

Step-by-step explanation:

In the given equation there is some mistype error so, its correct equation can be defined as follows:

Given value:

use hit and trial method we put x value are -2:

So, the real solution to the equation is "-2".

In the above solution, we calculate the f(x) =-2 is its real solution. so, the calculation for non-real solution:

divide the value by ():

Quotient:

Remainder: 0

Formula for calculate non-real solution:

non-real solution: "i-3 and -i-3"

180

step-by-step explanation:

mathpapa

step-by-step explanation: