Math Problem Statement

does f(x)=(x-5)(x+3)(x-2) have roots of -3,5, and 2?

Solution

Yes, the function f(x)=(x5)(x+3)(x2)f(x) = (x - 5)(x + 3)(x - 2) has roots of 3-3, 55, and 22.

In this function, each factor corresponds to a root:

  • x5=0x - 5 = 0 when x=5x = 5,
  • x+3=0x + 3 = 0 when x=3x = -3,
  • x2=0x - 2 = 0 when x=2x = 2.

Thus, the roots of f(x)f(x) are indeed x=3x = -3, x=5x = 5, and x=2x = 2.

Would you like more details on the process or have any other questions?

Here are some related questions to deepen your understanding:

  1. What happens to the graph of f(x)f(x) near each root?
  2. How does the sign of each factor change near each root?
  3. What is the degree and leading coefficient of f(x)=(x5)(x+3)(x2)f(x) = (x - 5)(x + 3)(x - 2)?
  4. How can we expand f(x)=(x5)(x+3)(x2)f(x) = (x - 5)(x + 3)(x - 2) to find the polynomial form?
  5. What does the graph of f(x)=(x5)(x+3)(x2)f(x) = (x - 5)(x + 3)(x - 2) look like?

Tip: Each root of a polynomial corresponds to an xx-intercept on its graph.

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Math Problem Analysis

Mathematical Concepts

Algebra
Polynomials
Roots of Polynomials

Formulas

Factored form of a polynomial: f(x) = (x - r1)(x - r2)...(x - rn)

Theorems

Zero Product Property

Suitable Grade Level

Grades 9-12