4x^2=-16x-14

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Solution for 4x^2=-16x-14 equation:


Simplifying
4x2 = -16x + -14

Reorder the terms:
4x2 = -14 + -16x

Solving
4x2 = -14 + -16x

Solving for variable 'x'.

Reorder the terms:
14 + 16x + 4x2 = -14 + -16x + 14 + 16x

Reorder the terms:
14 + 16x + 4x2 = -14 + 14 + -16x + 16x

Combine like terms: -14 + 14 = 0
14 + 16x + 4x2 = 0 + -16x + 16x
14 + 16x + 4x2 = -16x + 16x

Combine like terms: -16x + 16x = 0
14 + 16x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(7 + 8x + 2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(7 + 8x + 2x2)' equal to zero and attempt to solve: Simplifying 7 + 8x + 2x2 = 0 Solving 7 + 8x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 3.5 + 4x + x2 = 0 Move the constant term to the right: Add '-3.5' to each side of the equation. 3.5 + 4x + -3.5 + x2 = 0 + -3.5 Reorder the terms: 3.5 + -3.5 + 4x + x2 = 0 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + 4x + x2 = 0 + -3.5 4x + x2 = 0 + -3.5 Combine like terms: 0 + -3.5 = -3.5 4x + x2 = -3.5 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = -3.5 + 4 Reorder the terms: 4 + 4x + x2 = -3.5 + 4 Combine like terms: -3.5 + 4 = 0.5 4 + 4x + x2 = 0.5 Factor a perfect square on the left side: (x + 2)(x + 2) = 0.5 Calculate the square root of the right side: 0.707106781 Break this problem into two subproblems by setting (x + 2) equal to 0.707106781 and -0.707106781.

Subproblem 1

x + 2 = 0.707106781 Simplifying x + 2 = 0.707106781 Reorder the terms: 2 + x = 0.707106781 Solving 2 + x = 0.707106781 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0.707106781 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0.707106781 + -2 x = 0.707106781 + -2 Combine like terms: 0.707106781 + -2 = -1.292893219 x = -1.292893219 Simplifying x = -1.292893219

Subproblem 2

x + 2 = -0.707106781 Simplifying x + 2 = -0.707106781 Reorder the terms: 2 + x = -0.707106781 Solving 2 + x = -0.707106781 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -0.707106781 + -2 Combine like terms: 2 + -2 = 0 0 + x = -0.707106781 + -2 x = -0.707106781 + -2 Combine like terms: -0.707106781 + -2 = -2.707106781 x = -2.707106781 Simplifying x = -2.707106781

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.292893219, -2.707106781}

Solution

x = {-1.292893219, -2.707106781}

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