x^2-32x+40=0

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Solution for x^2-32x+40=0 equation:


Simplifying
x2 + -32x + 40 = 0

Reorder the terms:
40 + -32x + x2 = 0

Solving
40 + -32x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-40' to each side of the equation.
40 + -32x + -40 + x2 = 0 + -40

Reorder the terms:
40 + -40 + -32x + x2 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -32x + x2 = 0 + -40
-32x + x2 = 0 + -40

Combine like terms: 0 + -40 = -40
-32x + x2 = -40

The x term is -32x.  Take half its coefficient (-16).
Square it (256) and add it to both sides.

Add '256' to each side of the equation.
-32x + 256 + x2 = -40 + 256

Reorder the terms:
256 + -32x + x2 = -40 + 256

Combine like terms: -40 + 256 = 216
256 + -32x + x2 = 216

Factor a perfect square on the left side:
(x + -16)(x + -16) = 216

Calculate the square root of the right side: 14.696938457

Break this problem into two subproblems by setting 
(x + -16) equal to 14.696938457 and -14.696938457.

Subproblem 1

x + -16 = 14.696938457 Simplifying x + -16 = 14.696938457 Reorder the terms: -16 + x = 14.696938457 Solving -16 + x = 14.696938457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 14.696938457 + 16 Combine like terms: -16 + 16 = 0 0 + x = 14.696938457 + 16 x = 14.696938457 + 16 Combine like terms: 14.696938457 + 16 = 30.696938457 x = 30.696938457 Simplifying x = 30.696938457

Subproblem 2

x + -16 = -14.696938457 Simplifying x + -16 = -14.696938457 Reorder the terms: -16 + x = -14.696938457 Solving -16 + x = -14.696938457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = -14.696938457 + 16 Combine like terms: -16 + 16 = 0 0 + x = -14.696938457 + 16 x = -14.696938457 + 16 Combine like terms: -14.696938457 + 16 = 1.303061543 x = 1.303061543 Simplifying x = 1.303061543

Solution

The solution to the problem is based on the solutions from the subproblems. x = {30.696938457, 1.303061543}

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