Ok, I know how to start this problem, but the synthetic division is confusing me a little.
Use synthetic division to verify the upper and/or lower bounds of the zeros of f.
f(x) = 2x^4 - 8x + 3
Upper bound: x = 3; Lower bound: x = -4
So the possible real zeros I think are:
plus or minus 1/2, plus or minus 1.5
Now, I am confused. Can anyone help?