x^2-12x=58

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Solution for x^2-12x=58 equation:


Simplifying
x2 + -12x = 58

Reorder the terms:
-12x + x2 = 58

Solving
-12x + x2 = 58

Solving for variable 'x'.

Reorder the terms:
-58 + -12x + x2 = 58 + -58

Combine like terms: 58 + -58 = 0
-58 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '58' to each side of the equation.
-58 + -12x + 58 + x2 = 0 + 58

Reorder the terms:
-58 + 58 + -12x + x2 = 0 + 58

Combine like terms: -58 + 58 = 0
0 + -12x + x2 = 0 + 58
-12x + x2 = 0 + 58

Combine like terms: 0 + 58 = 58
-12x + x2 = 58

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = 58 + 36

Reorder the terms:
36 + -12x + x2 = 58 + 36

Combine like terms: 58 + 36 = 94
36 + -12x + x2 = 94

Factor a perfect square on the left side:
(x + -6)(x + -6) = 94

Calculate the square root of the right side: 9.695359715

Break this problem into two subproblems by setting 
(x + -6) equal to 9.695359715 and -9.695359715.

Subproblem 1

x + -6 = 9.695359715 Simplifying x + -6 = 9.695359715 Reorder the terms: -6 + x = 9.695359715 Solving -6 + x = 9.695359715 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 9.695359715 + 6 Combine like terms: -6 + 6 = 0 0 + x = 9.695359715 + 6 x = 9.695359715 + 6 Combine like terms: 9.695359715 + 6 = 15.695359715 x = 15.695359715 Simplifying x = 15.695359715

Subproblem 2

x + -6 = -9.695359715 Simplifying x + -6 = -9.695359715 Reorder the terms: -6 + x = -9.695359715 Solving -6 + x = -9.695359715 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -9.695359715 + 6 Combine like terms: -6 + 6 = 0 0 + x = -9.695359715 + 6 x = -9.695359715 + 6 Combine like terms: -9.695359715 + 6 = -3.695359715 x = -3.695359715 Simplifying x = -3.695359715

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.695359715, -3.695359715}

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