-x^2+30+4x=2x^2+14x+6

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Solution for -x^2+30+4x=2x^2+14x+6 equation:


Simplifying
-1x2 + 30 + 4x = 2x2 + 14x + 6

Reorder the terms:
30 + 4x + -1x2 = 2x2 + 14x + 6

Reorder the terms:
30 + 4x + -1x2 = 6 + 14x + 2x2

Solving
30 + 4x + -1x2 = 6 + 14x + 2x2

Solving for variable 'x'.

Reorder the terms:
30 + -6 + 4x + -14x + -1x2 + -2x2 = 6 + 14x + 2x2 + -6 + -14x + -2x2

Combine like terms: 30 + -6 = 24
24 + 4x + -14x + -1x2 + -2x2 = 6 + 14x + 2x2 + -6 + -14x + -2x2

Combine like terms: 4x + -14x = -10x
24 + -10x + -1x2 + -2x2 = 6 + 14x + 2x2 + -6 + -14x + -2x2

Combine like terms: -1x2 + -2x2 = -3x2
24 + -10x + -3x2 = 6 + 14x + 2x2 + -6 + -14x + -2x2

Reorder the terms:
24 + -10x + -3x2 = 6 + -6 + 14x + -14x + 2x2 + -2x2

Combine like terms: 6 + -6 = 0
24 + -10x + -3x2 = 0 + 14x + -14x + 2x2 + -2x2
24 + -10x + -3x2 = 14x + -14x + 2x2 + -2x2

Combine like terms: 14x + -14x = 0
24 + -10x + -3x2 = 0 + 2x2 + -2x2
24 + -10x + -3x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
24 + -10x + -3x2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
-8 + 3.333333333x + x2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + 3.333333333x + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + 3.333333333x + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 3.333333333x + x2 = 0 + 8
3.333333333x + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
3.333333333x + x2 = 8

The x term is 3.333333333x.  Take half its coefficient (1.666666667).
Square it (2.777777779) and add it to both sides.

Add '2.777777779' to each side of the equation.
3.333333333x + 2.777777779 + x2 = 8 + 2.777777779

Reorder the terms:
2.777777779 + 3.333333333x + x2 = 8 + 2.777777779

Combine like terms: 8 + 2.777777779 = 10.777777779
2.777777779 + 3.333333333x + x2 = 10.777777779

Factor a perfect square on the left side:
(x + 1.666666667)(x + 1.666666667) = 10.777777779

Calculate the square root of the right side: 3.282952601

Break this problem into two subproblems by setting 
(x + 1.666666667) equal to 3.282952601 and -3.282952601.

Subproblem 1

x + 1.666666667 = 3.282952601 Simplifying x + 1.666666667 = 3.282952601 Reorder the terms: 1.666666667 + x = 3.282952601 Solving 1.666666667 + x = 3.282952601 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.666666667' to each side of the equation. 1.666666667 + -1.666666667 + x = 3.282952601 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + x = 3.282952601 + -1.666666667 x = 3.282952601 + -1.666666667 Combine like terms: 3.282952601 + -1.666666667 = 1.616285934 x = 1.616285934 Simplifying x = 1.616285934

Subproblem 2

x + 1.666666667 = -3.282952601 Simplifying x + 1.666666667 = -3.282952601 Reorder the terms: 1.666666667 + x = -3.282952601 Solving 1.666666667 + x = -3.282952601 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.666666667' to each side of the equation. 1.666666667 + -1.666666667 + x = -3.282952601 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + x = -3.282952601 + -1.666666667 x = -3.282952601 + -1.666666667 Combine like terms: -3.282952601 + -1.666666667 = -4.949619268 x = -4.949619268 Simplifying x = -4.949619268

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.616285934, -4.949619268}

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