Math Problem Statement

x^4-14x+24

Solution

Let's analyze and solve the polynomial x414x+24x^4 - 14x + 24 by finding its roots or simplifying further.

Step 1: Analyze the polynomial

This is a fourth-degree polynomial: P(x)=x414x+24P(x) = x^4 - 14x + 24 It does not appear to have any obvious factorization as a sum or difference of terms. We will try to solve it by:

  1. Checking for possible rational roots using the Rational Root Theorem.
  2. Factoring further, if possible.

Step 2: Rational Root Theorem

The Rational Root Theorem suggests that any rational root is of the form: ±pq\pm \frac{p}{q} where:

  • pp are the factors of the constant term (24): ±1,±2,±3,±4,±6,±8,±12,±24\pm 1, \pm 2, \pm 3, \pm 4, \pm 6, \pm 8, \pm 12, \pm 24,
  • qq are the factors of the leading coefficient (1): ±1\pm 1.

This gives the potential rational roots: ±1,±2,±3,±4,±6,±8,±12,±24\pm 1, \pm 2, \pm 3, \pm 4, \pm 6, \pm 8, \pm 12, \pm 24


Step 3: Test roots

Substitute these into P(x)P(x) to find any that satisfy P(x)=0P(x) = 0.

  1. Test x=2x = 2: P(2)=(2)414(2)+24=1628+24=12(not a root)P(2) = (2)^4 - 14(2) + 24 = 16 - 28 + 24 = 12 \quad (\text{not a root})

  2. Test x=2x = -2: P(2)=(2)414(2)+24=16+28+24=68(not a root)P(-2) = (-2)^4 - 14(-2) + 24 = 16 + 28 + 24 = 68 \quad (\text{not a root})

Continue testing ±1,±3,±4,±6,±8,±12,±24\pm 1, \pm 3, \pm 4, \pm 6, \pm 8, \pm 12, \pm 24. None appear to work, so we must resort to numerical methods or graphing.


Step 4: Numerical approximation

If no rational roots exist, we approximate the real roots using methods such as Newton's method or graphing. Let me know if you'd like further exploration of this!


Would you like to proceed with numerical approximations or alternative methods?


Related Questions:

  1. How do you graphically find roots of higher-degree polynomials?
  2. What is the Rational Root Theorem, and why does it work?
  3. How does Newton's method approximate roots?
  4. Can the polynomial x414x+24x^4 - 14x + 24 have complex roots?
  5. How are polynomial roots verified using synthetic division?

Tip: Always start by testing simple integer roots when solving polynomials—they often reveal useful factorization!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Polynomials
Rational Root Theorem
Numerical Methods
Roots of Polynomials

Formulas

Rational Root Theorem: \pm p/q
Polynomial: P(x) = x^4 - 14x + 24

Theorems

Rational Root Theorem

Suitable Grade Level

Grades 11-12