(x-1)^2=3

2 min read Jun 17, 2024
(x-1)^2=3

Solving the Equation (x-1)^2 = 3

This equation is a quadratic equation in disguise. Let's break down how to solve it:

1. Expanding the Equation

First, expand the left side of the equation:

(x - 1)^2 = (x - 1)(x - 1) = x^2 - 2x + 1

Now we have: x^2 - 2x + 1 = 3

2. Rearranging the Equation

To solve the quadratic equation, we need to set it equal to zero:

x^2 - 2x - 2 = 0

3. Solving the Quadratic Equation

We can solve this equation using the quadratic formula:

x = [-b ± √(b^2 - 4ac)] / 2a

Where a = 1, b = -2, and c = -2.

Plugging in the values:

x = [2 ± √((-2)^2 - 4 * 1 * -2)] / (2 * 1)

x = [2 ± √(12)] / 2

x = [2 ± 2√3] / 2

4. Simplifying the Solution

Finally, we can simplify the solution:

x = 1 ± √3

Therefore, the solutions to the equation (x-1)^2 = 3 are:

x = 1 + √3 and x = 1 - √3

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