Math Problem Statement

find all the zero's of the polynomial function p(x)=2x^3-5x^2+x2

Solution

The given polynomial is: p(x)=2x35x2+x+2p(x) = 2x^3 - 5x^2 + x + 2

To find all the zeros of this polynomial, we'll use the Rational Root Theorem, synthetic division, and factoring if possible.

Step 1: Apply the Rational Root Theorem

The Rational Root Theorem suggests that possible rational roots of the polynomial are of the form: ±factors of the constant termfactors of the leading coefficient\pm \frac{\text{factors of the constant term}}{\text{factors of the leading coefficient}}

For p(x)=2x35x2+x+2p(x) = 2x^3 - 5x^2 + x + 2:

  • The constant term is 22, with factors ±1,±2\pm 1, \pm 2.
  • The leading coefficient is 22, with factors ±1,±2\pm 1, \pm 2.

The possible rational roots are: ±1,±2,±12\pm 1, \pm 2, \pm \frac{1}{2}

Step 2: Test the possible roots using synthetic division

Let's start by testing

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Math Problem Analysis

Mathematical Concepts

Polynomials
Rational Root Theorem
Synthetic Division
Factoring

Formulas

Rational Root Theorem: ±(factors of constant term) / (factors of leading coefficient)

Theorems

Rational Root Theorem

Suitable Grade Level

Grades 10-12