Simplifying and Solving the Expression: (x-2)² + x² = 2x² - 3x - 5
This article will explore the simplification and potential solutions for the given expression: (x-2)² + x² = 2x² - 3x - 5.
Simplifying the Expression
- Expand the square: (x-2)² = (x-2)(x-2) = x² - 4x + 4
- Combine like terms: The expression becomes: x² - 4x + 4 + x² = 2x² - 3x - 5
- Rearrange: 2x² - 4x + 4 = 2x² - 3x - 5
- Move all terms to one side: -4x + 4 + 3x + 5 = 0
- Simplify: -x + 9 = 0
Solving for x
Now we have a simple linear equation: -x + 9 = 0.
- Isolate x: x = 9
Therefore, the solution to the expression (x-2)² + x² = 2x² - 3x - 5 is x = 9.
Conclusion
By simplifying and rearranging the expression, we arrived at a linear equation. Solving for x reveals that the only solution is x = 9. It's important to note that this solution satisfies the original expression, making it a valid solution.