-.006x^2+1.2x+1=0

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Solution for -.006x^2+1.2x+1=0 equation:


Simplifying
-0.006x2 + 1.2x + 1 = 0

Reorder the terms:
1 + 1.2x + -0.006x2 = 0

Solving
1 + 1.2x + -0.006x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.006 the coefficient of the squared term: 

Divide each side by '-0.006'.
-166.6666667 + -200x + x2 = 0

Move the constant term to the right:

Add '166.6666667' to each side of the equation.
-166.6666667 + -200x + 166.6666667 + x2 = 0 + 166.6666667

Reorder the terms:
-166.6666667 + 166.6666667 + -200x + x2 = 0 + 166.6666667

Combine like terms: -166.6666667 + 166.6666667 = 0.0000000
0.0000000 + -200x + x2 = 0 + 166.6666667
-200x + x2 = 0 + 166.6666667

Combine like terms: 0 + 166.6666667 = 166.6666667
-200x + x2 = 166.6666667

The x term is -200x.  Take half its coefficient (-100).
Square it (10000) and add it to both sides.

Add '10000' to each side of the equation.
-200x + 10000 + x2 = 166.6666667 + 10000

Reorder the terms:
10000 + -200x + x2 = 166.6666667 + 10000

Combine like terms: 166.6666667 + 10000 = 10166.6666667
10000 + -200x + x2 = 10166.6666667

Factor a perfect square on the left side:
(x + -100)(x + -100) = 10166.6666667

Calculate the square root of the right side: 100.829889749

Break this problem into two subproblems by setting 
(x + -100) equal to 100.829889749 and -100.829889749.

Subproblem 1

x + -100 = 100.829889749 Simplifying x + -100 = 100.829889749 Reorder the terms: -100 + x = 100.829889749 Solving -100 + x = 100.829889749 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '100' to each side of the equation. -100 + 100 + x = 100.829889749 + 100 Combine like terms: -100 + 100 = 0 0 + x = 100.829889749 + 100 x = 100.829889749 + 100 Combine like terms: 100.829889749 + 100 = 200.829889749 x = 200.829889749 Simplifying x = 200.829889749

Subproblem 2

x + -100 = -100.829889749 Simplifying x + -100 = -100.829889749 Reorder the terms: -100 + x = -100.829889749 Solving -100 + x = -100.829889749 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '100' to each side of the equation. -100 + 100 + x = -100.829889749 + 100 Combine like terms: -100 + 100 = 0 0 + x = -100.829889749 + 100 x = -100.829889749 + 100 Combine like terms: -100.829889749 + 100 = -0.829889749 x = -0.829889749 Simplifying x = -0.829889749

Solution

The solution to the problem is based on the solutions from the subproblems. x = {200.829889749, -0.829889749}

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