152-x^2-x=0

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Solution for 152-x^2-x=0 equation:


Simplifying
152 + -1x2 + -1x = 0

Reorder the terms:
152 + -1x + -1x2 = 0

Solving
152 + -1x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-152 + x + x2 = 0

Move the constant term to the right:

Add '152' to each side of the equation.
-152 + x + 152 + x2 = 0 + 152

Reorder the terms:
-152 + 152 + x + x2 = 0 + 152

Combine like terms: -152 + 152 = 0
0 + x + x2 = 0 + 152
x + x2 = 0 + 152

Combine like terms: 0 + 152 = 152
x + x2 = 152

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 152 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 152 + 0.25

Combine like terms: 152 + 0.25 = 152.25
1.25 + x2 = 152.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 152.25

Calculate the square root of the right side: 12.338962679

Break this problem into two subproblems by setting 
(x + 0.5) equal to 12.338962679 and -12.338962679.

Subproblem 1

x + 0.5 = 12.338962679 Simplifying x + 0.5 = 12.338962679 Reorder the terms: 0.5 + x = 12.338962679 Solving 0.5 + x = 12.338962679 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 12.338962679 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 12.338962679 + -0.5 x = 12.338962679 + -0.5 Combine like terms: 12.338962679 + -0.5 = 11.838962679 x = 11.838962679 Simplifying x = 11.838962679

Subproblem 2

x + 0.5 = -12.338962679 Simplifying x + 0.5 = -12.338962679 Reorder the terms: 0.5 + x = -12.338962679 Solving 0.5 + x = -12.338962679 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -12.338962679 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -12.338962679 + -0.5 x = -12.338962679 + -0.5 Combine like terms: -12.338962679 + -0.5 = -12.838962679 x = -12.838962679 Simplifying x = -12.838962679

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.838962679, -12.838962679}

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