25x^2-82x+63=0

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Solution for 25x^2-82x+63=0 equation:


Simplifying
25x2 + -82x + 63 = 0

Reorder the terms:
63 + -82x + 25x2 = 0

Solving
63 + -82x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
2.52 + -3.28x + x2 = 0

Move the constant term to the right:

Add '-2.52' to each side of the equation.
2.52 + -3.28x + -2.52 + x2 = 0 + -2.52

Reorder the terms:
2.52 + -2.52 + -3.28x + x2 = 0 + -2.52

Combine like terms: 2.52 + -2.52 = 0.00
0.00 + -3.28x + x2 = 0 + -2.52
-3.28x + x2 = 0 + -2.52

Combine like terms: 0 + -2.52 = -2.52
-3.28x + x2 = -2.52

The x term is -3.28x.  Take half its coefficient (-1.64).
Square it (2.6896) and add it to both sides.

Add '2.6896' to each side of the equation.
-3.28x + 2.6896 + x2 = -2.52 + 2.6896

Reorder the terms:
2.6896 + -3.28x + x2 = -2.52 + 2.6896

Combine like terms: -2.52 + 2.6896 = 0.1696
2.6896 + -3.28x + x2 = 0.1696

Factor a perfect square on the left side:
(x + -1.64)(x + -1.64) = 0.1696

Calculate the square root of the right side: 0.411825206

Break this problem into two subproblems by setting 
(x + -1.64) equal to 0.411825206 and -0.411825206.

Subproblem 1

x + -1.64 = 0.411825206 Simplifying x + -1.64 = 0.411825206 Reorder the terms: -1.64 + x = 0.411825206 Solving -1.64 + x = 0.411825206 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.64' to each side of the equation. -1.64 + 1.64 + x = 0.411825206 + 1.64 Combine like terms: -1.64 + 1.64 = 0.00 0.00 + x = 0.411825206 + 1.64 x = 0.411825206 + 1.64 Combine like terms: 0.411825206 + 1.64 = 2.051825206 x = 2.051825206 Simplifying x = 2.051825206

Subproblem 2

x + -1.64 = -0.411825206 Simplifying x + -1.64 = -0.411825206 Reorder the terms: -1.64 + x = -0.411825206 Solving -1.64 + x = -0.411825206 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.64' to each side of the equation. -1.64 + 1.64 + x = -0.411825206 + 1.64 Combine like terms: -1.64 + 1.64 = 0.00 0.00 + x = -0.411825206 + 1.64 x = -0.411825206 + 1.64 Combine like terms: -0.411825206 + 1.64 = 1.228174794 x = 1.228174794 Simplifying x = 1.228174794

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.051825206, 1.228174794}

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