-.025x^2+3.6x+1.2=0

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Solution for -.025x^2+3.6x+1.2=0 equation:


Simplifying
-0.025x2 + 3.6x + 1.2 = 0

Reorder the terms:
1.2 + 3.6x + -0.025x2 = 0

Solving
1.2 + 3.6x + -0.025x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.025 the coefficient of the squared term: 

Divide each side by '-0.025'.
-48 + -144x + x2 = 0

Move the constant term to the right:

Add '48' to each side of the equation.
-48 + -144x + 48 + x2 = 0 + 48

Reorder the terms:
-48 + 48 + -144x + x2 = 0 + 48

Combine like terms: -48 + 48 = 0
0 + -144x + x2 = 0 + 48
-144x + x2 = 0 + 48

Combine like terms: 0 + 48 = 48
-144x + x2 = 48

The x term is -144x.  Take half its coefficient (-72).
Square it (5184) and add it to both sides.

Add '5184' to each side of the equation.
-144x + 5184 + x2 = 48 + 5184

Reorder the terms:
5184 + -144x + x2 = 48 + 5184

Combine like terms: 48 + 5184 = 5232
5184 + -144x + x2 = 5232

Factor a perfect square on the left side:
(x + -72)(x + -72) = 5232

Calculate the square root of the right side: 72.33256528

Break this problem into two subproblems by setting 
(x + -72) equal to 72.33256528 and -72.33256528.

Subproblem 1

x + -72 = 72.33256528 Simplifying x + -72 = 72.33256528 Reorder the terms: -72 + x = 72.33256528 Solving -72 + x = 72.33256528 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '72' to each side of the equation. -72 + 72 + x = 72.33256528 + 72 Combine like terms: -72 + 72 = 0 0 + x = 72.33256528 + 72 x = 72.33256528 + 72 Combine like terms: 72.33256528 + 72 = 144.33256528 x = 144.33256528 Simplifying x = 144.33256528

Subproblem 2

x + -72 = -72.33256528 Simplifying x + -72 = -72.33256528 Reorder the terms: -72 + x = -72.33256528 Solving -72 + x = -72.33256528 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '72' to each side of the equation. -72 + 72 + x = -72.33256528 + 72 Combine like terms: -72 + 72 = 0 0 + x = -72.33256528 + 72 x = -72.33256528 + 72 Combine like terms: -72.33256528 + 72 = -0.33256528 x = -0.33256528 Simplifying x = -0.33256528

Solution

The solution to the problem is based on the solutions from the subproblems. x = {144.33256528, -0.33256528}

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