5x^2-32x+43=0

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Solution for 5x^2-32x+43=0 equation:


Simplifying
5x2 + -32x + 43 = 0

Reorder the terms:
43 + -32x + 5x2 = 0

Solving
43 + -32x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
8.6 + -6.4x + x2 = 0

Move the constant term to the right:

Add '-8.6' to each side of the equation.
8.6 + -6.4x + -8.6 + x2 = 0 + -8.6

Reorder the terms:
8.6 + -8.6 + -6.4x + x2 = 0 + -8.6

Combine like terms: 8.6 + -8.6 = 0.0
0.0 + -6.4x + x2 = 0 + -8.6
-6.4x + x2 = 0 + -8.6

Combine like terms: 0 + -8.6 = -8.6
-6.4x + x2 = -8.6

The x term is -6.4x.  Take half its coefficient (-3.2).
Square it (10.24) and add it to both sides.

Add '10.24' to each side of the equation.
-6.4x + 10.24 + x2 = -8.6 + 10.24

Reorder the terms:
10.24 + -6.4x + x2 = -8.6 + 10.24

Combine like terms: -8.6 + 10.24 = 1.64
10.24 + -6.4x + x2 = 1.64

Factor a perfect square on the left side:
(x + -3.2)(x + -3.2) = 1.64

Calculate the square root of the right side: 1.280624847

Break this problem into two subproblems by setting 
(x + -3.2) equal to 1.280624847 and -1.280624847.

Subproblem 1

x + -3.2 = 1.280624847 Simplifying x + -3.2 = 1.280624847 Reorder the terms: -3.2 + x = 1.280624847 Solving -3.2 + x = 1.280624847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + x = 1.280624847 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + x = 1.280624847 + 3.2 x = 1.280624847 + 3.2 Combine like terms: 1.280624847 + 3.2 = 4.480624847 x = 4.480624847 Simplifying x = 4.480624847

Subproblem 2

x + -3.2 = -1.280624847 Simplifying x + -3.2 = -1.280624847 Reorder the terms: -3.2 + x = -1.280624847 Solving -3.2 + x = -1.280624847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + x = -1.280624847 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + x = -1.280624847 + 3.2 x = -1.280624847 + 3.2 Combine like terms: -1.280624847 + 3.2 = 1.919375153 x = 1.919375153 Simplifying x = 1.919375153

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.480624847, 1.919375153}

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