x^2+x^2+1+x+x^2+4+4x=194

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Solution for x^2+x^2+1+x+x^2+4+4x=194 equation:


Simplifying
x2 + x2 + 1 + x + x2 + 4 + 4x = 194

Reorder the terms:
1 + 4 + x + 4x + x2 + x2 + x2 = 194

Combine like terms: 1 + 4 = 5
5 + x + 4x + x2 + x2 + x2 = 194

Combine like terms: x + 4x = 5x
5 + 5x + x2 + x2 + x2 = 194

Combine like terms: x2 + x2 = 2x2
5 + 5x + 2x2 + x2 = 194

Combine like terms: 2x2 + x2 = 3x2
5 + 5x + 3x2 = 194

Solving
5 + 5x + 3x2 = 194

Solving for variable 'x'.

Reorder the terms:
5 + -194 + 5x + 3x2 = 194 + -194

Combine like terms: 5 + -194 = -189
-189 + 5x + 3x2 = 194 + -194

Combine like terms: 194 + -194 = 0
-189 + 5x + 3x2 = 0

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

Divide each side by '3'.
-63 + 1.666666667x + x2 = 0

Move the constant term to the right:

Add '63' to each side of the equation.
-63 + 1.666666667x + 63 + x2 = 0 + 63

Reorder the terms:
-63 + 63 + 1.666666667x + x2 = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 1.666666667x + x2 = 0 + 63
1.666666667x + x2 = 0 + 63

Combine like terms: 0 + 63 = 63
1.666666667x + x2 = 63

The x term is 1.666666667x.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667x + 0.6944444447 + x2 = 63 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667x + x2 = 63 + 0.6944444447

Combine like terms: 63 + 0.6944444447 = 63.6944444447
0.6944444447 + 1.666666667x + x2 = 63.6944444447

Factor a perfect square on the left side:
(x + 0.8333333335)(x + 0.8333333335) = 63.6944444447

Calculate the square root of the right side: 7.980879929

Break this problem into two subproblems by setting 
(x + 0.8333333335) equal to 7.980879929 and -7.980879929.

Subproblem 1

x + 0.8333333335 = 7.980879929 Simplifying x + 0.8333333335 = 7.980879929 Reorder the terms: 0.8333333335 + x = 7.980879929 Solving 0.8333333335 + x = 7.980879929 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 7.980879929 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 7.980879929 + -0.8333333335 x = 7.980879929 + -0.8333333335 Combine like terms: 7.980879929 + -0.8333333335 = 7.1475465955 x = 7.1475465955 Simplifying x = 7.1475465955

Subproblem 2

x + 0.8333333335 = -7.980879929 Simplifying x + 0.8333333335 = -7.980879929 Reorder the terms: 0.8333333335 + x = -7.980879929 Solving 0.8333333335 + x = -7.980879929 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -7.980879929 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -7.980879929 + -0.8333333335 x = -7.980879929 + -0.8333333335 Combine like terms: -7.980879929 + -0.8333333335 = -8.8142132625 x = -8.8142132625 Simplifying x = -8.8142132625

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.1475465955, -8.8142132625}

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