Math Problem Statement

(x-3)2=5 what is x

Solution

You have the equation:

(x3)2=5(x - 3)^2 = 5

To solve for xx, follow these steps:

  1. Take the square root of both sides to eliminate the square: (x3)2=±5\sqrt{(x - 3)^2} = \pm \sqrt{5} Which simplifies to: x3=±5x - 3 = \pm \sqrt{5}

  2. Solve for xx by adding 3 to both sides: x=3±5x = 3 \pm \sqrt{5}

Thus, the two solutions for xx are: x=3+5orx=35x = 3 + \sqrt{5} \quad \text{or} \quad x = 3 - \sqrt{5}

If you want a decimal approximation: x3+2.236orx32.236x \approx 3 + 2.236 \quad \text{or} \quad x \approx 3 - 2.236 So: x5.236orx0.764x \approx 5.236 \quad \text{or} \quad x \approx 0.764

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

Here are 5 related questions:

  1. What is the method to solve quadratic equations in general?
  2. How do you handle negative numbers under square roots?
  3. Can complex numbers be a solution to this equation?
  4. How can you graph the function (x3)25=0(x-3)^2 - 5 = 0?
  5. What does it mean to "complete the square" in algebra?

Tip: Always remember, taking the square root of both sides introduces both the positive and negative roots!

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Math Problem Analysis

Mathematical Concepts

Algebra
Square Roots
Quadratic Equations

Formulas

(x - 3)^2 = 5
Square Root Property

Theorems

Properties of Square Roots

Suitable Grade Level

Grades 8-10