(x-15)(x-15)=2

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Solution for (x-15)(x-15)=2 equation:


Simplifying
(x + -15)(x + -15) = 2

Reorder the terms:
(-15 + x)(x + -15) = 2

Reorder the terms:
(-15 + x)(-15 + x) = 2

Multiply (-15 + x) * (-15 + x)
(-15(-15 + x) + x(-15 + x)) = 2
((-15 * -15 + x * -15) + x(-15 + x)) = 2
((225 + -15x) + x(-15 + x)) = 2
(225 + -15x + (-15 * x + x * x)) = 2
(225 + -15x + (-15x + x2)) = 2

Combine like terms: -15x + -15x = -30x
(225 + -30x + x2) = 2

Solving
225 + -30x + x2 = 2

Solving for variable 'x'.

Reorder the terms:
225 + -2 + -30x + x2 = 2 + -2

Combine like terms: 225 + -2 = 223
223 + -30x + x2 = 2 + -2

Combine like terms: 2 + -2 = 0
223 + -30x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-223' to each side of the equation.
223 + -30x + -223 + x2 = 0 + -223

Reorder the terms:
223 + -223 + -30x + x2 = 0 + -223

Combine like terms: 223 + -223 = 0
0 + -30x + x2 = 0 + -223
-30x + x2 = 0 + -223

Combine like terms: 0 + -223 = -223
-30x + x2 = -223

The x term is -30x.  Take half its coefficient (-15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
-30x + 225 + x2 = -223 + 225

Reorder the terms:
225 + -30x + x2 = -223 + 225

Combine like terms: -223 + 225 = 2
225 + -30x + x2 = 2

Factor a perfect square on the left side:
(x + -15)(x + -15) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(x + -15) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + -15 = 1.414213562 Simplifying x + -15 = 1.414213562 Reorder the terms: -15 + x = 1.414213562 Solving -15 + x = 1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = 1.414213562 + 15 Combine like terms: -15 + 15 = 0 0 + x = 1.414213562 + 15 x = 1.414213562 + 15 Combine like terms: 1.414213562 + 15 = 16.414213562 x = 16.414213562 Simplifying x = 16.414213562

Subproblem 2

x + -15 = -1.414213562 Simplifying x + -15 = -1.414213562 Reorder the terms: -15 + x = -1.414213562 Solving -15 + x = -1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = -1.414213562 + 15 Combine like terms: -15 + 15 = 0 0 + x = -1.414213562 + 15 x = -1.414213562 + 15 Combine like terms: -1.414213562 + 15 = 13.585786438 x = 13.585786438 Simplifying x = 13.585786438

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.414213562, 13.585786438}

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