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Solve for all values of \( x \) by factoring. \[ x^{2}-13 x+24=-x+4 \]

Ask by Pearson Marsh. in the United States
Feb 03,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

The solutions are \( x = 2 \) and \( x = 10 \).

Solution

To solve the equation by factoring: \[ x^{2} - 13x + 24 = -x + 4 \] **Step 1: Move all terms to one side of the equation** Add \( x \) and subtract \( 4 \) from both sides: \[ x^{2} - 13x + 24 + x - 4 = 0 \] Simplify: \[ x^{2} - 12x + 20 = 0 \] **Step 2: Factor the quadratic equation** We need to find two numbers that multiply to \( 20 \) and add up to \( -12 \). The numbers \( -10 \) and \( -2 \) satisfy these conditions: \[ -10 \times -2 = 20 \quad \text{and} \quad -10 + (-2) = -12 \] So, the factored form is: \[ (x - 10)(x - 2) = 0 \] **Step 3: Solve for \( x \)** Set each factor equal to zero: \[ x - 10 = 0 \quad \Rightarrow \quad x = 10 \] \[ x - 2 = 0 \quad \Rightarrow \quad x = 2 \] **Solution:** The values of \( x \) that satisfy the equation are \( x = 10 \) and \( x = 2 \). **Final Answer:** \(\boxed{\left\{2,\;10\,\right\}}\)

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To solve for all values of \( x \) by factoring, we start by rearranging the equation: \[ x^{2} - 13x + 24 + x - 4 = 0 \] This simplifies to: \[ x^{2} - 12x + 20 = 0 \] Now we need to factor this quadratic equation. We look for two numbers that multiply to \( 20 \) (the constant term) and add up to \( -12 \) (the coefficient of \( x \)). The numbers \( -10 \) and \( -2 \) fit this requirement since: \[ -10 \times -2 = 20 \] \[ -10 + -2 = -12 \] Now we can factor the quadratic: \[ (x - 10)(x - 2) = 0 \] To find the values of \( x \), we set each factor equal to zero: 1. \( x - 10 = 0 \) ⇒ \( x = 10 \) 2. \( x - 2 = 0 \) ⇒ \( x = 2 \) Thus, the solutions are: \[ x = 10 \quad \text{and} \quad x = 2 \]

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