2(x^2)-16x+17=0

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Solution for 2(x^2)-16x+17=0 equation:


Simplifying
2(x2) + -16x + 17 = 0

Reorder the terms:
17 + -16x + 2x2 = 0

Solving
17 + -16x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
8.5 + -8x + x2 = 0

Move the constant term to the right:

Add '-8.5' to each side of the equation.
8.5 + -8x + -8.5 + x2 = 0 + -8.5

Reorder the terms:
8.5 + -8.5 + -8x + x2 = 0 + -8.5

Combine like terms: 8.5 + -8.5 = 0.0
0.0 + -8x + x2 = 0 + -8.5
-8x + x2 = 0 + -8.5

Combine like terms: 0 + -8.5 = -8.5
-8x + x2 = -8.5

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 = -8.5 + 16

Reorder the terms:
16 + -8x + x2 = -8.5 + 16

Combine like terms: -8.5 + 16 = 7.5
16 + -8x + x2 = 7.5

Factor a perfect square on the left side:
(x + -4)(x + -4) = 7.5

Calculate the square root of the right side: 2.738612788

Break this problem into two subproblems by setting 
(x + -4) equal to 2.738612788 and -2.738612788.

Subproblem 1

x + -4 = 2.738612788 Simplifying x + -4 = 2.738612788 Reorder the terms: -4 + x = 2.738612788 Solving -4 + x = 2.738612788 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 = 2.738612788 + 4 Combine like terms: -4 + 4 = 0 0 + x = 2.738612788 + 4 x = 2.738612788 + 4 Combine like terms: 2.738612788 + 4 = 6.738612788 x = 6.738612788 Simplifying x = 6.738612788

Subproblem 2

x + -4 = -2.738612788 Simplifying x + -4 = -2.738612788 Reorder the terms: -4 + x = -2.738612788 Solving -4 + x = -2.738612788 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 = -2.738612788 + 4 Combine like terms: -4 + 4 = 0 0 + x = -2.738612788 + 4 x = -2.738612788 + 4 Combine like terms: -2.738612788 + 4 = 1.261387212 x = 1.261387212 Simplifying x = 1.261387212

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.738612788, 1.261387212}

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