Question

Find All Real Solutions of the Polynomial Equation:

Z^4+Z^3+Z^2+3Z-6=0

Answer 1

wait why -1?

Answer 2

Actually, let Z = 1

Answer 3

I thought that last 3Z was an exponent, but it's not.

Answer 4

oh

Answer 5

I'm sure by now you already know that Z = 1 works, right?

Answer 6

yes

Answer 7

Which means (x-1) is one of the factors. Now do synthetic division to find the other factors.

Answer 8

This is the answer but i don't see how

Answer 9

If only you knew how to do synthetic division.

Answer 10

Long division might even work

Answer 11

wait lost track how you get Z=1

Answer 12

I didn't "get" it. I simply used a procedure to find the first factor of Z. When dealing with problems like this, you have to use trial and error to find the first factor.

Answer 13

ok i see