(4x^2-6)+(-2x+19x)=180

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Solution for (4x^2-6)+(-2x+19x)=180 equation:


Simplifying
(4x2 + -6) + (-2x + 19x) = 180

Reorder the terms:
(-6 + 4x2) + (-2x + 19x) = 180

Remove parenthesis around (-6 + 4x2)
-6 + 4x2 + (-2x + 19x) = 180

Combine like terms: -2x + 19x = 17x
-6 + 4x2 + (17x) = 180
-6 + 4x2 + (17x) = 180

Reorder the terms:
-6 + (17x) + 4x2 = 180

Solving
-6 + (17x) + 4x2 = 180

Solving for variable 'x'.

Reorder the terms:
-6 + -180 + (17x) + 4x2 = 180 + -180

Combine like terms: -6 + -180 = -186
-186 + (17x) + 4x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-186 + (17x) + 4x2 = 0

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

Divide each side by '4'.
-46.5 + (4.25x) + x2 = 0

Move the constant term to the right:

Add '46.5' to each side of the equation.
-46.5 + (4.25x) + 46.5 + x2 = 0 + 46.5

Reorder the terms:
-46.5 + 46.5 + (4.25x) + x2 = 0 + 46.5

Combine like terms: -46.5 + 46.5 = 0.0
0.0 + (4.25x) + x2 = 0 + 46.5
(4.25x) + x2 = 0 + 46.5

Combine like terms: 0 + 46.5 = 46.5
(4.25x) + x2 = 46.5

The x term is (4.25x).  Take half its coefficient (2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
(4.25x) + 4.515625 + x2 = 46.5 + 4.515625

Reorder the terms:
4.515625 + (4.25x) + x2 = 46.5 + 4.515625

Combine like terms: 46.5 + 4.515625 = 51.015625
4.515625 + (4.25x) + x2 = 51.015625

Factor a perfect square on the left side:
(x + 2.125)(x + 2.125) = 51.015625

Calculate the square root of the right side: 7.142522314

Break this problem into two subproblems by setting 
(x + 2.125) equal to 7.142522314 and -7.142522314.

Subproblem 1

x + 2.125 = 7.142522314 Simplifying x + 2.125 = 7.142522314 Reorder the terms: 2.125 + x = 7.142522314 Solving 2.125 + x = 7.142522314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = 7.142522314 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = 7.142522314 + -2.125 x = 7.142522314 + -2.125 Combine like terms: 7.142522314 + -2.125 = 5.017522314 x = 5.017522314 Simplifying x = 5.017522314

Subproblem 2

x + 2.125 = -7.142522314 Simplifying x + 2.125 = -7.142522314 Reorder the terms: 2.125 + x = -7.142522314 Solving 2.125 + x = -7.142522314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = -7.142522314 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = -7.142522314 + -2.125 x = -7.142522314 + -2.125 Combine like terms: -7.142522314 + -2.125 = -9.267522314 x = -9.267522314 Simplifying x = -9.267522314

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.017522314, -9.267522314}

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