(x-2)(x-5)

2 min read Jun 17, 2024
(x-2)(x-5)

Factoring and Solving (x-2)(x-5) = 0

The expression (x-2)(x-5) represents a factored quadratic equation. Let's break down how to understand and solve it.

Understanding the Factored Form

  • Factored form: This form highlights the roots or solutions of the equation. Each factor represents a linear expression that equals zero when the entire equation equals zero.
  • Individual factors: (x-2) and (x-5) are the two factors.
  • Zero Product Property: The Zero Product Property states that if the product of two or more factors is zero, then at least one of the factors must be zero.

Solving for x

To find the solutions for x, we use the Zero Product Property:

  1. Set each factor equal to zero:

    • x - 2 = 0
    • x - 5 = 0
  2. Solve for x in each equation:

    • x = 2
    • x = 5

The Solutions

Therefore, the solutions to the equation (x-2)(x-5) = 0 are x = 2 and x = 5.

Expanding the Equation

We can expand the factored form to get the standard quadratic equation:

(x-2)(x-5) = x² - 7x + 10

This confirms that the solutions we found for the factored form are also the solutions to the expanded quadratic equation.

Significance of the Solutions

The solutions x = 2 and x = 5 represent the x-intercepts of the parabola defined by the quadratic equation y = x² - 7x + 10. These are the points where the parabola crosses the x-axis.

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