25x^2-32x+4=0

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Solution for 25x^2-32x+4=0 equation:


Simplifying
25x2 + -32x + 4 = 0

Reorder the terms:
4 + -32x + 25x2 = 0

Solving
4 + -32x + 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'.
0.16 + -1.28x + x2 = 0

Move the constant term to the right:

Add '-0.16' to each side of the equation.
0.16 + -1.28x + -0.16 + x2 = 0 + -0.16

Reorder the terms:
0.16 + -0.16 + -1.28x + x2 = 0 + -0.16

Combine like terms: 0.16 + -0.16 = 0.00
0.00 + -1.28x + x2 = 0 + -0.16
-1.28x + x2 = 0 + -0.16

Combine like terms: 0 + -0.16 = -0.16
-1.28x + x2 = -0.16

The x term is -1.28x.  Take half its coefficient (-0.64).
Square it (0.4096) and add it to both sides.

Add '0.4096' to each side of the equation.
-1.28x + 0.4096 + x2 = -0.16 + 0.4096

Reorder the terms:
0.4096 + -1.28x + x2 = -0.16 + 0.4096

Combine like terms: -0.16 + 0.4096 = 0.2496
0.4096 + -1.28x + x2 = 0.2496

Factor a perfect square on the left side:
(x + -0.64)(x + -0.64) = 0.2496

Calculate the square root of the right side: 0.49959984

Break this problem into two subproblems by setting 
(x + -0.64) equal to 0.49959984 and -0.49959984.

Subproblem 1

x + -0.64 = 0.49959984 Simplifying x + -0.64 = 0.49959984 Reorder the terms: -0.64 + x = 0.49959984 Solving -0.64 + x = 0.49959984 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.64' to each side of the equation. -0.64 + 0.64 + x = 0.49959984 + 0.64 Combine like terms: -0.64 + 0.64 = 0.00 0.00 + x = 0.49959984 + 0.64 x = 0.49959984 + 0.64 Combine like terms: 0.49959984 + 0.64 = 1.13959984 x = 1.13959984 Simplifying x = 1.13959984

Subproblem 2

x + -0.64 = -0.49959984 Simplifying x + -0.64 = -0.49959984 Reorder the terms: -0.64 + x = -0.49959984 Solving -0.64 + x = -0.49959984 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.64' to each side of the equation. -0.64 + 0.64 + x = -0.49959984 + 0.64 Combine like terms: -0.64 + 0.64 = 0.00 0.00 + x = -0.49959984 + 0.64 x = -0.49959984 + 0.64 Combine like terms: -0.49959984 + 0.64 = 0.14040016 x = 0.14040016 Simplifying x = 0.14040016

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.13959984, 0.14040016}

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