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Raise to negative one (x) =x-2

Sagot :

Answer:

Understanding the Problem

Problem:

* Raise x to the negative one power.

* Set the result equal to x - 2.

Equation:

* x^(-1) = x - 2

Solving the Equation

To solve this equation, we can manipulate it to get a polynomial equation and then find its roots.

Step 1: Convert to a fraction

* x^(-1) is equivalent to 1/x.

* So, the equation becomes: 1/x = x - 2

Step 2: Clear the fraction

* Multiply both sides by x:

* 1 = x^2 - 2x

Step 3: Rearrange into a quadratic equation

* Subtract 1 from both sides:

* x^2 - 2x - 1 = 0

Step 4: Solve the quadratic equation

* This equation cannot be easily factored, so we'll use the quadratic formula:

* x = [-b ± sqrt(b^2 - 4ac)] / (2a)

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

* Plugging in the values, we get:

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

* x = [2 ± sqrt(8)] / 2

* x = 1 ± sqrt(2)

Solutions:

* x = 1 + sqrt(2)

* x = 1 - sqrt(2)

Therefore, the solutions to the equation x^(-1) = x - 2 are x = 1 + sqrt(2) and x = 1 - sqrt(2).

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