0.2x^2-12x=-50

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Solution for 0.2x^2-12x=-50 equation:


Simplifying
0.2x2 + -12x = -50

Reorder the terms:
-12x + 0.2x2 = -50

Solving
-12x + 0.2x2 = -50

Solving for variable 'x'.

Reorder the terms:
50 + -12x + 0.2x2 = -50 + 50

Combine like terms: -50 + 50 = 0
50 + -12x + 0.2x2 = 0

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

Divide each side by '0.2'.
250 + -60x + x2 = 0

Move the constant term to the right:

Add '-250' to each side of the equation.
250 + -60x + -250 + x2 = 0 + -250

Reorder the terms:
250 + -250 + -60x + x2 = 0 + -250

Combine like terms: 250 + -250 = 0
0 + -60x + x2 = 0 + -250
-60x + x2 = 0 + -250

Combine like terms: 0 + -250 = -250
-60x + x2 = -250

The x term is -60x.  Take half its coefficient (-30).
Square it (900) and add it to both sides.

Add '900' to each side of the equation.
-60x + 900 + x2 = -250 + 900

Reorder the terms:
900 + -60x + x2 = -250 + 900

Combine like terms: -250 + 900 = 650
900 + -60x + x2 = 650

Factor a perfect square on the left side:
(x + -30)(x + -30) = 650

Calculate the square root of the right side: 25.495097568

Break this problem into two subproblems by setting 
(x + -30) equal to 25.495097568 and -25.495097568.

Subproblem 1

x + -30 = 25.495097568 Simplifying x + -30 = 25.495097568 Reorder the terms: -30 + x = 25.495097568 Solving -30 + x = 25.495097568 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = 25.495097568 + 30 Combine like terms: -30 + 30 = 0 0 + x = 25.495097568 + 30 x = 25.495097568 + 30 Combine like terms: 25.495097568 + 30 = 55.495097568 x = 55.495097568 Simplifying x = 55.495097568

Subproblem 2

x + -30 = -25.495097568 Simplifying x + -30 = -25.495097568 Reorder the terms: -30 + x = -25.495097568 Solving -30 + x = -25.495097568 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = -25.495097568 + 30 Combine like terms: -30 + 30 = 0 0 + x = -25.495097568 + 30 x = -25.495097568 + 30 Combine like terms: -25.495097568 + 30 = 4.504902432 x = 4.504902432 Simplifying x = 4.504902432

Solution

The solution to the problem is based on the solutions from the subproblems. x = {55.495097568, 4.504902432}

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