10x^2+2x=-2

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Solution for 10x^2+2x=-2 equation:


Simplifying
10x2 + 2x = -2

Reorder the terms:
2x + 10x2 = -2

Solving
2x + 10x2 = -2

Solving for variable 'x'.

Reorder the terms:
2 + 2x + 10x2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + 2x + 10x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(1 + x + 5x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(1 + x + 5x2)' equal to zero and attempt to solve: Simplifying 1 + x + 5x2 = 0 Solving 1 + x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 0.2 + 0.2x + x2 = 0 Move the constant term to the right: Add '-0.2' to each side of the equation. 0.2 + 0.2x + -0.2 + x2 = 0 + -0.2 Reorder the terms: 0.2 + -0.2 + 0.2x + x2 = 0 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + 0.2x + x2 = 0 + -0.2 0.2x + x2 = 0 + -0.2 Combine like terms: 0 + -0.2 = -0.2 0.2x + x2 = -0.2 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. 0.2x + 0.25 + x2 = -0.2 + 0.25 Reorder the terms: 0.25 + 0.2x + x2 = -0.2 + 0.25 Combine like terms: -0.2 + 0.25 = 0.05 0.25 + 0.2x + x2 = 0.05 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 0.05 Calculate the square root of the right side: 0.223606798 Break this problem into two subproblems by setting (x + 0.5) equal to 0.223606798 and -0.223606798.

Subproblem 1

x + 0.5 = 0.223606798 Simplifying x + 0.5 = 0.223606798 Reorder the terms: 0.5 + x = 0.223606798 Solving 0.5 + x = 0.223606798 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 = 0.223606798 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.223606798 + -0.5 x = 0.223606798 + -0.5 Combine like terms: 0.223606798 + -0.5 = -0.276393202 x = -0.276393202 Simplifying x = -0.276393202

Subproblem 2

x + 0.5 = -0.223606798 Simplifying x + 0.5 = -0.223606798 Reorder the terms: 0.5 + x = -0.223606798 Solving 0.5 + x = -0.223606798 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 = -0.223606798 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.223606798 + -0.5 x = -0.223606798 + -0.5 Combine like terms: -0.223606798 + -0.5 = -0.723606798 x = -0.723606798 Simplifying x = -0.723606798

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.276393202, -0.723606798}

Solution

x = {-0.276393202, -0.723606798}

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