-0.5x^2-46x-10=0

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Solution for -0.5x^2-46x-10=0 equation:


Simplifying
-0.5x2 + -46x + -10 = 0

Reorder the terms:
-10 + -46x + -0.5x2 = 0

Solving
-10 + -46x + -0.5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
20 + 92x + x2 = 0

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + 92x + -20 + x2 = 0 + -20

Reorder the terms:
20 + -20 + 92x + x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + 92x + x2 = 0 + -20
92x + x2 = 0 + -20

Combine like terms: 0 + -20 = -20
92x + x2 = -20

The x term is 92x.  Take half its coefficient (46).
Square it (2116) and add it to both sides.

Add '2116' to each side of the equation.
92x + 2116 + x2 = -20 + 2116

Reorder the terms:
2116 + 92x + x2 = -20 + 2116

Combine like terms: -20 + 2116 = 2096
2116 + 92x + x2 = 2096

Factor a perfect square on the left side:
(x + 46)(x + 46) = 2096

Calculate the square root of the right side: 45.782092569

Break this problem into two subproblems by setting 
(x + 46) equal to 45.782092569 and -45.782092569.

Subproblem 1

x + 46 = 45.782092569 Simplifying x + 46 = 45.782092569 Reorder the terms: 46 + x = 45.782092569 Solving 46 + x = 45.782092569 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-46' to each side of the equation. 46 + -46 + x = 45.782092569 + -46 Combine like terms: 46 + -46 = 0 0 + x = 45.782092569 + -46 x = 45.782092569 + -46 Combine like terms: 45.782092569 + -46 = -0.217907431 x = -0.217907431 Simplifying x = -0.217907431

Subproblem 2

x + 46 = -45.782092569 Simplifying x + 46 = -45.782092569 Reorder the terms: 46 + x = -45.782092569 Solving 46 + x = -45.782092569 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-46' to each side of the equation. 46 + -46 + x = -45.782092569 + -46 Combine like terms: 46 + -46 = 0 0 + x = -45.782092569 + -46 x = -45.782092569 + -46 Combine like terms: -45.782092569 + -46 = -91.782092569 x = -91.782092569 Simplifying x = -91.782092569

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.217907431, -91.782092569}

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