algebra
posted by Zac .
According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0?

verify that you meant
x^3 + 8x^2 + 6 = 0 
x3 + 8x2x6 = 0?

x^3 + 8x^2  x  6 = 0
Let f(x) = x^3 + 8x^2  x  6
f(1) = 1+816 ≠ 0
f(1) = 1 + 8 + 1  6 ≠ 0
f(2) = 8 + 32  2  6 ≠ 0
f(2) = 8 + 32 + 2  6 ≠ 0
f(3) = 27 + .... ≠ 0
f(3) = 27 + 72 ... ≠ 0
numbers which are NOT possible rational roots are
±1 , ±2 , ± 3
Is that what you wanted? 
yeh but my homework has +2 and +1 as answers abd i can only choose one

I used the 1 , 2, and 3 since they were factors of the 6 at the end.
There are an infinite number of choices of rational numbers which are NOT possible roots.
This is a poorly worded question.
go with the ±1 and ±2
Respond to this Question
Similar Questions

math
List all possible rational zeros of... h(x)= 2x to the (4th power)  5x (to the third power) + 3x (to the 2nd power) + 4x  6 Use the Rational Roots Theorem. Any root of the form p/q with p and q relatively prime must be such that … 
ALGEBRA
SIMPLIFY: 5 ROOT OF 6X +4 ROOT OF 6X IS THE ROOT OF 77 IRRATIONAL OR RATIONAL? 
Algebra 2
Use the rational root theorem to determine which of the following could not be a root of 6x^3+23x^26x8=0 I need all of the steps. Thanks 
algebra
use the rational root theorem to list the possible rational roots for each of the following equations f(x)=x^2+2x+1 f(x)=x^22x+5 f(x)=x^2+4x5 
PreCalcPlease check
Is this correct? Using Rational Roots Theorem, list all possible rational root of f(x) = 2x^3  3x^2 + 5x+6 Possible roots are p/a = +1, +2, +3, +6. +3/2 
ALGEBRA 2
Use the Rational Root Theorem to list all possible rational roots for each equation. Then find any actual roots. x^3 + 2x^2 + 3x + 6 = 0 (8 points) 
algebra
using the rational root theorem to list all possible rational roots of the polynomial equation x^3x^2x3=0 possible answers 3,1,1,3 1,3 33 no roots 
Math
Find all possible rational roots using the rational root theorem. x^4  3x^2 + 12 = 0 Plus/minus 1, 2, 3, 4, 6, 12? 
Math
According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0? 
Math
According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0?