x^2-32x=-28

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Solution for x^2-32x=-28 equation:


Simplifying
x2 + -32x = -28

Reorder the terms:
-32x + x2 = -28

Solving
-32x + x2 = -28

Solving for variable 'x'.

Reorder the terms:
28 + -32x + x2 = -28 + 28

Combine like terms: -28 + 28 = 0
28 + -32x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-28' to each side of the equation.
28 + -32x + -28 + x2 = 0 + -28

Reorder the terms:
28 + -28 + -32x + x2 = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -32x + x2 = 0 + -28
-32x + x2 = 0 + -28

Combine like terms: 0 + -28 = -28
-32x + x2 = -28

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 = -28 + 256

Reorder the terms:
256 + -32x + x2 = -28 + 256

Combine like terms: -28 + 256 = 228
256 + -32x + x2 = 228

Factor a perfect square on the left side:
(x + -16)(x + -16) = 228

Calculate the square root of the right side: 15.099668871

Break this problem into two subproblems by setting 
(x + -16) equal to 15.099668871 and -15.099668871.

Subproblem 1

x + -16 = 15.099668871 Simplifying x + -16 = 15.099668871 Reorder the terms: -16 + x = 15.099668871 Solving -16 + x = 15.099668871 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 = 15.099668871 + 16 Combine like terms: -16 + 16 = 0 0 + x = 15.099668871 + 16 x = 15.099668871 + 16 Combine like terms: 15.099668871 + 16 = 31.099668871 x = 31.099668871 Simplifying x = 31.099668871

Subproblem 2

x + -16 = -15.099668871 Simplifying x + -16 = -15.099668871 Reorder the terms: -16 + x = -15.099668871 Solving -16 + x = -15.099668871 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 = -15.099668871 + 16 Combine like terms: -16 + 16 = 0 0 + x = -15.099668871 + 16 x = -15.099668871 + 16 Combine like terms: -15.099668871 + 16 = 0.900331129 x = 0.900331129 Simplifying x = 0.900331129

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.099668871, 0.900331129}

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