|
Question 189959This question is from textbook saxon algebra 2
: Find the roots of y=x^9-x^7-8x^6-16x^5+8x^4+16x^3+128x^2-128
This question is from textbook saxon algebra 2
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Find the roots of y=x^9-x^7-8x^6-16x^5+8x^4+16x^3+128x^2-128
-----------
Since the coefficients add up to zero, x=1 is a root.
Use synthetic division to find other roots:
----------
1)....1....0....-1....-8....-16....8....16....128....0....-128
.......1.....1....0.....-8....-24...-16...0.....128...128..|..0
---------
I graphed the equation and found that x=1 is the only Real Number zero.
=====================
Cheers,
Stan H.
|
|
|
| |
