SOLUTION: Could someone explain how I should solve these three problems;
Use the synthetic substitution to find the value of f(-2) for f(x)=x^3-3x^2-x-9.
Use the Factor Theorem to determin
Algebra.Com
Question 199258: Could someone explain how I should solve these three problems;
Use the synthetic substitution to find the value of f(-2) for f(x)=x^3-3x^2-x-9.
Use the Factor Theorem to determine whether (x-3) is a factor of f(x)=x^4+12x^3+6x+27.
In x^3-4x^2+2x+1=0, how many possible positive and how many possible negative roots are there?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Use the synthetic substitution to find the value of f(-2) for f(x)=x^3-3x^2-x-9.
---
-2)....1....-3....-1....-9
.........1....-5....9...|..-27
f(-2) = -27
===================================
Use the Factor Theorem to determine whether (x-3) is a factor of f(x)=x^4+12x^3+6x+27.
3)....1....12....0....6....27
........1....15...45...141..|..450
Since f(3) is not zero, x-3 is not a factor.
===================================
In x^3-4x^2+2x+1=0, how many possible positive and how many possible negative roots are there?
In f(x) there are 2 changes of sign, so 0 or 2 positive roots.
--------------
f(-x) = -x^3 - 4x^2 - 2x + 1
In f(-x) there are 2 changes of sign, so there are 0 or 2 negative roots.
===================================
Cheers,
Stan H.
RELATED QUESTIONS
use synthetic substitution to find the value of f(-2) for f(x)=x^3-3x^2-x-9
(answered by stanbon)
use synthetic substitution to find the value of f(-2) for f(x)=... (answered by nyc_function)
Use synthetic substitution to find the value of f(-2) for... (answered by stanbon)
Id have a question; I should find out what the possible rational roots of x^3 - 4x^2... (answered by Alan3354)
1. Use synthetic division to divide p(x) = x^4 - 10x^2 - 2x + 4 by x + 3
2. Let f(x) = (answered by josgarithmetic)
Find the value of sec(theta), if cos(theta)=2/19; 0<=theta<=90.
If you could give me... (answered by Alan3354)
How do I use synthetic substitution to find f(3) for f(x) = 2x^4 - 3x^2 - x +... (answered by ichudov)
I have Three problems on my work sheet that I do not understand how to do. The... (answered by ankor@dixie-net.com)
2.how do I use synthetic division to find the function value
f(x)=4x^3+2x^2-6x+2;... (answered by Fombitz)