7x^2+2x=37-32x

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Solution for 7x^2+2x=37-32x equation:


Simplifying
7x2 + 2x = 37 + -32x

Reorder the terms:
2x + 7x2 = 37 + -32x

Solving
2x + 7x2 = 37 + -32x

Solving for variable 'x'.

Reorder the terms:
-37 + 2x + 32x + 7x2 = 37 + -32x + -37 + 32x

Combine like terms: 2x + 32x = 34x
-37 + 34x + 7x2 = 37 + -32x + -37 + 32x

Reorder the terms:
-37 + 34x + 7x2 = 37 + -37 + -32x + 32x

Combine like terms: 37 + -37 = 0
-37 + 34x + 7x2 = 0 + -32x + 32x
-37 + 34x + 7x2 = -32x + 32x

Combine like terms: -32x + 32x = 0
-37 + 34x + 7x2 = 0

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

Divide each side by '7'.
-5.285714286 + 4.857142857x + x2 = 0

Move the constant term to the right:

Add '5.285714286' to each side of the equation.
-5.285714286 + 4.857142857x + 5.285714286 + x2 = 0 + 5.285714286

Reorder the terms:
-5.285714286 + 5.285714286 + 4.857142857x + x2 = 0 + 5.285714286

Combine like terms: -5.285714286 + 5.285714286 = 0.000000000
0.000000000 + 4.857142857x + x2 = 0 + 5.285714286
4.857142857x + x2 = 0 + 5.285714286

Combine like terms: 0 + 5.285714286 = 5.285714286
4.857142857x + x2 = 5.285714286

The x term is 4.857142857x.  Take half its coefficient (2.428571429).
Square it (5.897959186) and add it to both sides.

Add '5.897959186' to each side of the equation.
4.857142857x + 5.897959186 + x2 = 5.285714286 + 5.897959186

Reorder the terms:
5.897959186 + 4.857142857x + x2 = 5.285714286 + 5.897959186

Combine like terms: 5.285714286 + 5.897959186 = 11.183673472
5.897959186 + 4.857142857x + x2 = 11.183673472

Factor a perfect square on the left side:
(x + 2.428571429)(x + 2.428571429) = 11.183673472

Calculate the square root of the right side: 3.344199975

Break this problem into two subproblems by setting 
(x + 2.428571429) equal to 3.344199975 and -3.344199975.

Subproblem 1

x + 2.428571429 = 3.344199975 Simplifying x + 2.428571429 = 3.344199975 Reorder the terms: 2.428571429 + x = 3.344199975 Solving 2.428571429 + x = 3.344199975 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.428571429' to each side of the equation. 2.428571429 + -2.428571429 + x = 3.344199975 + -2.428571429 Combine like terms: 2.428571429 + -2.428571429 = 0.000000000 0.000000000 + x = 3.344199975 + -2.428571429 x = 3.344199975 + -2.428571429 Combine like terms: 3.344199975 + -2.428571429 = 0.915628546 x = 0.915628546 Simplifying x = 0.915628546

Subproblem 2

x + 2.428571429 = -3.344199975 Simplifying x + 2.428571429 = -3.344199975 Reorder the terms: 2.428571429 + x = -3.344199975 Solving 2.428571429 + x = -3.344199975 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.428571429' to each side of the equation. 2.428571429 + -2.428571429 + x = -3.344199975 + -2.428571429 Combine like terms: 2.428571429 + -2.428571429 = 0.000000000 0.000000000 + x = -3.344199975 + -2.428571429 x = -3.344199975 + -2.428571429 Combine like terms: -3.344199975 + -2.428571429 = -5.772771404 x = -5.772771404 Simplifying x = -5.772771404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.915628546, -5.772771404}

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