Math Problem Statement

Find the zeros of f(x)=x^3−5x^2+6x

Solution

To find the zeros of the function f(x)=x35x2+6xf(x) = x^3 - 5x^2 + 6x, we need to solve the equation f(x)=0f(x) = 0.

Step 1: Set up the equation

x35x2+6x=0x^3 - 5x^2 + 6x = 0

Step 2: Factor out xx

Since each term contains xx, we can factor out xx from the expression: x(x25x+6)=0x(x^2 - 5x + 6) = 0

This gives us two factors:

  1. x=0x = 0
  2. x25x+6=0x^2 - 5x + 6 = 0

Step 3: Solve x25x+6=0x^2 - 5x + 6 = 0

To solve x25x+6=0x^2 - 5x + 6 = 0, we factor it further: x25x+6=(x2)(x3)=0x^2 - 5x + 6 = (x - 2)(x - 3) = 0

Step 4: Find the solutions

Setting each factor equal to zero gives us:

  1. x=0x = 0
  2. x2=0x=2x - 2 = 0 \Rightarrow x = 2
  3. x3=0x=3x - 3 = 0 \Rightarrow x = 3

Solution

The zeros of f(x)=x35x2+6xf(x) = x^3 - 5x^2 + 6x are: x=0,x=2,x=3x = 0, \quad x = 2, \quad x = 3

Would you like a detailed explanation of factoring or have any other questions?


Related Questions:

  1. How do you factor trinomials in quadratic form?
  2. What are the zeros of the polynomial g(x)=x34x2+4xg(x) = x^3 - 4x^2 + 4x?
  3. How can you verify the zeros of a polynomial?
  4. What is the significance of multiplicity in the zeros of a polynomial?
  5. How do the zeros of a polynomial relate to its graph?

Tip: When finding zeros, always start by factoring out any common terms.

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Math Problem Analysis

Mathematical Concepts

Algebra
Polynomial Equations
Factoring

Formulas

Polynomial equation formula ax^n + bx^(n-1) + ... + k = 0

Theorems

Factor theorem
Zero Product Property

Suitable Grade Level

Grades 9-12