x^2-8x+16=44

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Solution for x^2-8x+16=44 equation:


Simplifying
x2 + -8x + 16 = 44

Reorder the terms:
16 + -8x + x2 = 44

Solving
16 + -8x + x2 = 44

Solving for variable 'x'.

Reorder the terms:
16 + -44 + -8x + x2 = 44 + -44

Combine like terms: 16 + -44 = -28
-28 + -8x + x2 = 44 + -44

Combine like terms: 44 + -44 = 0
-28 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '28' to each side of the equation.
-28 + -8x + 28 + x2 = 0 + 28

Reorder the terms:
-28 + 28 + -8x + x2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + -8x + x2 = 0 + 28
-8x + x2 = 0 + 28

Combine like terms: 0 + 28 = 28
-8x + x2 = 28

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = 28 + 16

Reorder the terms:
16 + -8x + x2 = 28 + 16

Combine like terms: 28 + 16 = 44
16 + -8x + x2 = 44

Factor a perfect square on the left side:
(x + -4)(x + -4) = 44

Calculate the square root of the right side: 6.633249581

Break this problem into two subproblems by setting 
(x + -4) equal to 6.633249581 and -6.633249581.

Subproblem 1

x + -4 = 6.633249581 Simplifying x + -4 = 6.633249581 Reorder the terms: -4 + x = 6.633249581 Solving -4 + x = 6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 6.633249581 + 4 Combine like terms: -4 + 4 = 0 0 + x = 6.633249581 + 4 x = 6.633249581 + 4 Combine like terms: 6.633249581 + 4 = 10.633249581 x = 10.633249581 Simplifying x = 10.633249581

Subproblem 2

x + -4 = -6.633249581 Simplifying x + -4 = -6.633249581 Reorder the terms: -4 + x = -6.633249581 Solving -4 + x = -6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -6.633249581 + 4 Combine like terms: -4 + 4 = 0 0 + x = -6.633249581 + 4 x = -6.633249581 + 4 Combine like terms: -6.633249581 + 4 = -2.633249581 x = -2.633249581 Simplifying x = -2.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.633249581, -2.633249581}

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