(x+5)^2 = 256

less than a minute read Jun 17, 2024
(x+5)^2 = 256

Solving the Equation: (x+5)^2 = 256

This equation involves a squared term, making it a quadratic equation. Here's how to solve it:

1. Take the Square Root of Both Sides

The first step is to isolate the term inside the parentheses. We can do this by taking the square root of both sides of the equation:

√[(x+5)^2] = ±√256 

Remember to include both positive and negative square roots of 256.

2. Simplify

Simplifying the equation, we get:

x + 5 = ±16

3. Solve for x

Now, we have two separate equations to solve:

  • Equation 1: x + 5 = 16
  • Equation 2: x + 5 = -16

Solving for x in each equation:

  • Equation 1: x = 16 - 5 = 11
  • Equation 2: x = -16 - 5 = -21

Conclusion

Therefore, the solutions to the equation (x+5)^2 = 256 are x = 11 and x = -21.

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