9x^2+12=37+5x

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Solution for 9x^2+12=37+5x equation:


Simplifying
9x2 + 12 = 37 + 5x

Reorder the terms:
12 + 9x2 = 37 + 5x

Solving
12 + 9x2 = 37 + 5x

Solving for variable 'x'.

Reorder the terms:
12 + -37 + -5x + 9x2 = 37 + 5x + -37 + -5x

Combine like terms: 12 + -37 = -25
-25 + -5x + 9x2 = 37 + 5x + -37 + -5x

Reorder the terms:
-25 + -5x + 9x2 = 37 + -37 + 5x + -5x

Combine like terms: 37 + -37 = 0
-25 + -5x + 9x2 = 0 + 5x + -5x
-25 + -5x + 9x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-25 + -5x + 9x2 = 0

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

Divide each side by '9'.
-2.777777778 + -0.5555555556x + x2 = 0

Move the constant term to the right:

Add '2.777777778' to each side of the equation.
-2.777777778 + -0.5555555556x + 2.777777778 + x2 = 0 + 2.777777778

Reorder the terms:
-2.777777778 + 2.777777778 + -0.5555555556x + x2 = 0 + 2.777777778

Combine like terms: -2.777777778 + 2.777777778 = 0.000000000
0.000000000 + -0.5555555556x + x2 = 0 + 2.777777778
-0.5555555556x + x2 = 0 + 2.777777778

Combine like terms: 0 + 2.777777778 = 2.777777778
-0.5555555556x + x2 = 2.777777778

The x term is -0.5555555556x.  Take half its coefficient (-0.2777777778).
Square it (0.07716049384) and add it to both sides.

Add '0.07716049384' to each side of the equation.
-0.5555555556x + 0.07716049384 + x2 = 2.777777778 + 0.07716049384

Reorder the terms:
0.07716049384 + -0.5555555556x + x2 = 2.777777778 + 0.07716049384

Combine like terms: 2.777777778 + 0.07716049384 = 2.85493827184
0.07716049384 + -0.5555555556x + x2 = 2.85493827184

Factor a perfect square on the left side:
(x + -0.2777777778)(x + -0.2777777778) = 2.85493827184

Calculate the square root of the right side: 1.689656258

Break this problem into two subproblems by setting 
(x + -0.2777777778) equal to 1.689656258 and -1.689656258.

Subproblem 1

x + -0.2777777778 = 1.689656258 Simplifying x + -0.2777777778 = 1.689656258 Reorder the terms: -0.2777777778 + x = 1.689656258 Solving -0.2777777778 + x = 1.689656258 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2777777778' to each side of the equation. -0.2777777778 + 0.2777777778 + x = 1.689656258 + 0.2777777778 Combine like terms: -0.2777777778 + 0.2777777778 = 0.0000000000 0.0000000000 + x = 1.689656258 + 0.2777777778 x = 1.689656258 + 0.2777777778 Combine like terms: 1.689656258 + 0.2777777778 = 1.9674340358 x = 1.9674340358 Simplifying x = 1.9674340358

Subproblem 2

x + -0.2777777778 = -1.689656258 Simplifying x + -0.2777777778 = -1.689656258 Reorder the terms: -0.2777777778 + x = -1.689656258 Solving -0.2777777778 + x = -1.689656258 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2777777778' to each side of the equation. -0.2777777778 + 0.2777777778 + x = -1.689656258 + 0.2777777778 Combine like terms: -0.2777777778 + 0.2777777778 = 0.0000000000 0.0000000000 + x = -1.689656258 + 0.2777777778 x = -1.689656258 + 0.2777777778 Combine like terms: -1.689656258 + 0.2777777778 = -1.4118784802 x = -1.4118784802 Simplifying x = -1.4118784802

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.9674340358, -1.4118784802}

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