10x^2+4x=-4

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Solution for 10x^2+4x=-4 equation:


Simplifying
10x2 + 4x = -4

Reorder the terms:
4x + 10x2 = -4

Solving
4x + 10x2 = -4

Solving for variable 'x'.

Reorder the terms:
4 + 4x + 10x2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + 4x + 10x2 = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(2 + 2x + 5x2)' equal to zero and attempt to solve: Simplifying 2 + 2x + 5x2 = 0 Solving 2 + 2x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 0.4 + 0.4x + x2 = 0 Move the constant term to the right: Add '-0.4' to each side of the equation. 0.4 + 0.4x + -0.4 + x2 = 0 + -0.4 Reorder the terms: 0.4 + -0.4 + 0.4x + x2 = 0 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + 0.4x + x2 = 0 + -0.4 0.4x + x2 = 0 + -0.4 Combine like terms: 0 + -0.4 = -0.4 0.4x + x2 = -0.4 The x term is 0.4x. Take half its coefficient (0.2). Square it (0.04) and add it to both sides. Add '0.04' to each side of the equation. 0.4x + 0.04 + x2 = -0.4 + 0.04 Reorder the terms: 0.04 + 0.4x + x2 = -0.4 + 0.04 Combine like terms: -0.4 + 0.04 = -0.36 0.04 + 0.4x + x2 = -0.36 Factor a perfect square on the left side: (x + 0.2)(x + 0.2) = -0.36 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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