x*x+4.53458x-3=43

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Solution for x*x+4.53458x-3=43 equation:


Simplifying
x * x + 4.53458x + -3 = 43

Multiply x * x
x2 + 4.53458x + -3 = 43

Reorder the terms:
-3 + 4.53458x + x2 = 43

Solving
-3 + 4.53458x + x2 = 43

Solving for variable 'x'.

Reorder the terms:
-3 + -43 + 4.53458x + x2 = 43 + -43

Combine like terms: -3 + -43 = -46
-46 + 4.53458x + x2 = 43 + -43

Combine like terms: 43 + -43 = 0
-46 + 4.53458x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '46' to each side of the equation.
-46 + 4.53458x + 46 + x2 = 0 + 46

Reorder the terms:
-46 + 46 + 4.53458x + x2 = 0 + 46

Combine like terms: -46 + 46 = 0
0 + 4.53458x + x2 = 0 + 46
4.53458x + x2 = 0 + 46

Combine like terms: 0 + 46 = 46
4.53458x + x2 = 46

The x term is 4.53458x.  Take half its coefficient (2.26729).
Square it (5.140603944) and add it to both sides.

Add '5.140603944' to each side of the equation.
4.53458x + 5.140603944 + x2 = 46 + 5.140603944

Reorder the terms:
5.140603944 + 4.53458x + x2 = 46 + 5.140603944

Combine like terms: 46 + 5.140603944 = 51.140603944
5.140603944 + 4.53458x + x2 = 51.140603944

Factor a perfect square on the left side:
(x + 2.26729)(x + 2.26729) = 51.140603944

Calculate the square root of the right side: 7.151265898

Break this problem into two subproblems by setting 
(x + 2.26729) equal to 7.151265898 and -7.151265898.

Subproblem 1

x + 2.26729 = 7.151265898 Simplifying x + 2.26729 = 7.151265898 Reorder the terms: 2.26729 + x = 7.151265898 Solving 2.26729 + x = 7.151265898 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.26729' to each side of the equation. 2.26729 + -2.26729 + x = 7.151265898 + -2.26729 Combine like terms: 2.26729 + -2.26729 = 0.00000 0.00000 + x = 7.151265898 + -2.26729 x = 7.151265898 + -2.26729 Combine like terms: 7.151265898 + -2.26729 = 4.883975898 x = 4.883975898 Simplifying x = 4.883975898

Subproblem 2

x + 2.26729 = -7.151265898 Simplifying x + 2.26729 = -7.151265898 Reorder the terms: 2.26729 + x = -7.151265898 Solving 2.26729 + x = -7.151265898 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.26729' to each side of the equation. 2.26729 + -2.26729 + x = -7.151265898 + -2.26729 Combine like terms: 2.26729 + -2.26729 = 0.00000 0.00000 + x = -7.151265898 + -2.26729 x = -7.151265898 + -2.26729 Combine like terms: -7.151265898 + -2.26729 = -9.418555898 x = -9.418555898 Simplifying x = -9.418555898

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.883975898, -9.418555898}

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