1+0.5x=x^2-6x+9

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Solution for 1+0.5x=x^2-6x+9 equation:


Simplifying
1 + 0.5x = x2 + -6x + 9

Reorder the terms:
1 + 0.5x = 9 + -6x + x2

Solving
1 + 0.5x = 9 + -6x + x2

Solving for variable 'x'.

Reorder the terms:
1 + -9 + 0.5x + 6x + -1x2 = 9 + -6x + x2 + -9 + 6x + -1x2

Combine like terms: 1 + -9 = -8
-8 + 0.5x + 6x + -1x2 = 9 + -6x + x2 + -9 + 6x + -1x2

Combine like terms: 0.5x + 6x = 6.5x
-8 + 6.5x + -1x2 = 9 + -6x + x2 + -9 + 6x + -1x2

Reorder the terms:
-8 + 6.5x + -1x2 = 9 + -9 + -6x + 6x + x2 + -1x2

Combine like terms: 9 + -9 = 0
-8 + 6.5x + -1x2 = 0 + -6x + 6x + x2 + -1x2
-8 + 6.5x + -1x2 = -6x + 6x + x2 + -1x2

Combine like terms: -6x + 6x = 0
-8 + 6.5x + -1x2 = 0 + x2 + -1x2
-8 + 6.5x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-8 + 6.5x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
8 + -6.5x + x2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -6.5x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -6.5x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -6.5x + x2 = 0 + -8
-6.5x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-6.5x + x2 = -8

The x term is -6.5x.  Take half its coefficient (-3.25).
Square it (10.5625) and add it to both sides.

Add '10.5625' to each side of the equation.
-6.5x + 10.5625 + x2 = -8 + 10.5625

Reorder the terms:
10.5625 + -6.5x + x2 = -8 + 10.5625

Combine like terms: -8 + 10.5625 = 2.5625
10.5625 + -6.5x + x2 = 2.5625

Factor a perfect square on the left side:
(x + -3.25)(x + -3.25) = 2.5625

Calculate the square root of the right side: 1.600781059

Break this problem into two subproblems by setting 
(x + -3.25) equal to 1.600781059 and -1.600781059.

Subproblem 1

x + -3.25 = 1.600781059 Simplifying x + -3.25 = 1.600781059 Reorder the terms: -3.25 + x = 1.600781059 Solving -3.25 + x = 1.600781059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.25' to each side of the equation. -3.25 + 3.25 + x = 1.600781059 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + x = 1.600781059 + 3.25 x = 1.600781059 + 3.25 Combine like terms: 1.600781059 + 3.25 = 4.850781059 x = 4.850781059 Simplifying x = 4.850781059

Subproblem 2

x + -3.25 = -1.600781059 Simplifying x + -3.25 = -1.600781059 Reorder the terms: -3.25 + x = -1.600781059 Solving -3.25 + x = -1.600781059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.25' to each side of the equation. -3.25 + 3.25 + x = -1.600781059 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + x = -1.600781059 + 3.25 x = -1.600781059 + 3.25 Combine like terms: -1.600781059 + 3.25 = 1.649218941 x = 1.649218941 Simplifying x = 1.649218941

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.850781059, 1.649218941}

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