0=.1x^2+27x-1700

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Solution for 0=.1x^2+27x-1700 equation:


Simplifying
0 = 0.1x2 + 27x + -1700

Reorder the terms:
0 = -1700 + 27x + 0.1x2

Solving
0 = -1700 + 27x + 0.1x2

Solving for variable 'x'.

Combine like terms: 0 + 1700 = 1700
1700 + -27x + -0.1x2 = -1700 + 27x + 0.1x2 + 1700 + -27x + -0.1x2

Reorder the terms:
1700 + -27x + -0.1x2 = -1700 + 1700 + 27x + -27x + 0.1x2 + -0.1x2

Combine like terms: -1700 + 1700 = 0
1700 + -27x + -0.1x2 = 0 + 27x + -27x + 0.1x2 + -0.1x2
1700 + -27x + -0.1x2 = 27x + -27x + 0.1x2 + -0.1x2

Combine like terms: 27x + -27x = 0
1700 + -27x + -0.1x2 = 0 + 0.1x2 + -0.1x2
1700 + -27x + -0.1x2 = 0.1x2 + -0.1x2

Combine like terms: 0.1x2 + -0.1x2 = 0.0
1700 + -27x + -0.1x2 = 0.0

Begin completing the square.  Divide all terms by
-0.1 the coefficient of the squared term: 

Divide each side by '-0.1'.
-17000 + 270x + x2 = 0

Move the constant term to the right:

Add '17000' to each side of the equation.
-17000 + 270x + 17000 + x2 = 0 + 17000

Reorder the terms:
-17000 + 17000 + 270x + x2 = 0 + 17000

Combine like terms: -17000 + 17000 = 0
0 + 270x + x2 = 0 + 17000
270x + x2 = 0 + 17000

Combine like terms: 0 + 17000 = 17000
270x + x2 = 17000

The x term is 270x.  Take half its coefficient (135).
Square it (18225) and add it to both sides.

Add '18225' to each side of the equation.
270x + 18225 + x2 = 17000 + 18225

Reorder the terms:
18225 + 270x + x2 = 17000 + 18225

Combine like terms: 17000 + 18225 = 35225
18225 + 270x + x2 = 35225

Factor a perfect square on the left side:
(x + 135)(x + 135) = 35225

Calculate the square root of the right side: 187.683243791

Break this problem into two subproblems by setting 
(x + 135) equal to 187.683243791 and -187.683243791.

Subproblem 1

x + 135 = 187.683243791 Simplifying x + 135 = 187.683243791 Reorder the terms: 135 + x = 187.683243791 Solving 135 + x = 187.683243791 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-135' to each side of the equation. 135 + -135 + x = 187.683243791 + -135 Combine like terms: 135 + -135 = 0 0 + x = 187.683243791 + -135 x = 187.683243791 + -135 Combine like terms: 187.683243791 + -135 = 52.683243791 x = 52.683243791 Simplifying x = 52.683243791

Subproblem 2

x + 135 = -187.683243791 Simplifying x + 135 = -187.683243791 Reorder the terms: 135 + x = -187.683243791 Solving 135 + x = -187.683243791 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-135' to each side of the equation. 135 + -135 + x = -187.683243791 + -135 Combine like terms: 135 + -135 = 0 0 + x = -187.683243791 + -135 x = -187.683243791 + -135 Combine like terms: -187.683243791 + -135 = -322.683243791 x = -322.683243791 Simplifying x = -322.683243791

Solution

The solution to the problem is based on the solutions from the subproblems. x = {52.683243791, -322.683243791}

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