(x-3.2)(x)(2.3)=180.4

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Solution for (x-3.2)(x)(2.3)=180.4 equation:


Simplifying
(x + -3.2)(x)(2.3) = 180.4

Reorder the terms:
(-3.2 + x)(x)(2.3) = 180.4

Reorder the terms for easier multiplication:
2.3x(-3.2 + x) = 180.4
(-3.2 * 2.3x + x * 2.3x) = 180.4
(-7.36x + 2.3x2) = 180.4

Solving
-7.36x + 2.3x2 = 180.4

Solving for variable 'x'.

Reorder the terms:
-180.4 + -7.36x + 2.3x2 = 180.4 + -180.4

Combine like terms: 180.4 + -180.4 = 0.0
-180.4 + -7.36x + 2.3x2 = 0.0

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

Divide each side by '2.3'.
-78.43478261 + -3.2x + x2 = 0

Move the constant term to the right:

Add '78.43478261' to each side of the equation.
-78.43478261 + -3.2x + 78.43478261 + x2 = 0 + 78.43478261

Reorder the terms:
-78.43478261 + 78.43478261 + -3.2x + x2 = 0 + 78.43478261

Combine like terms: -78.43478261 + 78.43478261 = 0.00000000
0.00000000 + -3.2x + x2 = 0 + 78.43478261
-3.2x + x2 = 0 + 78.43478261

Combine like terms: 0 + 78.43478261 = 78.43478261
-3.2x + x2 = 78.43478261

The x term is -3.2x.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2x + 2.56 + x2 = 78.43478261 + 2.56

Reorder the terms:
2.56 + -3.2x + x2 = 78.43478261 + 2.56

Combine like terms: 78.43478261 + 2.56 = 80.99478261
2.56 + -3.2x + x2 = 80.99478261

Factor a perfect square on the left side:
(x + -1.6)(x + -1.6) = 80.99478261

Calculate the square root of the right side: 8.99971014

Break this problem into two subproblems by setting 
(x + -1.6) equal to 8.99971014 and -8.99971014.

Subproblem 1

x + -1.6 = 8.99971014 Simplifying x + -1.6 = 8.99971014 Reorder the terms: -1.6 + x = 8.99971014 Solving -1.6 + x = 8.99971014 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = 8.99971014 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = 8.99971014 + 1.6 x = 8.99971014 + 1.6 Combine like terms: 8.99971014 + 1.6 = 10.59971014 x = 10.59971014 Simplifying x = 10.59971014

Subproblem 2

x + -1.6 = -8.99971014 Simplifying x + -1.6 = -8.99971014 Reorder the terms: -1.6 + x = -8.99971014 Solving -1.6 + x = -8.99971014 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = -8.99971014 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = -8.99971014 + 1.6 x = -8.99971014 + 1.6 Combine like terms: -8.99971014 + 1.6 = -7.39971014 x = -7.39971014 Simplifying x = -7.39971014

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.59971014, -7.39971014}

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