300x^2-342x+61.56=0

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Solution for 300x^2-342x+61.56=0 equation:


Simplifying
300x2 + -342x + 61.56 = 0

Reorder the terms:
61.56 + -342x + 300x2 = 0

Solving
61.56 + -342x + 300x2 = 0

Solving for variable 'x'.

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

Divide each side by '300'.
0.2052 + -1.14x + x2 = 0

Move the constant term to the right:

Add '-0.2052' to each side of the equation.
0.2052 + -1.14x + -0.2052 + x2 = 0 + -0.2052

Reorder the terms:
0.2052 + -0.2052 + -1.14x + x2 = 0 + -0.2052

Combine like terms: 0.2052 + -0.2052 = 0.0000
0.0000 + -1.14x + x2 = 0 + -0.2052
-1.14x + x2 = 0 + -0.2052

Combine like terms: 0 + -0.2052 = -0.2052
-1.14x + x2 = -0.2052

The x term is -1.14x.  Take half its coefficient (-0.57).
Square it (0.3249) and add it to both sides.

Add '0.3249' to each side of the equation.
-1.14x + 0.3249 + x2 = -0.2052 + 0.3249

Reorder the terms:
0.3249 + -1.14x + x2 = -0.2052 + 0.3249

Combine like terms: -0.2052 + 0.3249 = 0.1197
0.3249 + -1.14x + x2 = 0.1197

Factor a perfect square on the left side:
(x + -0.57)(x + -0.57) = 0.1197

Calculate the square root of the right side: 0.345976878

Break this problem into two subproblems by setting 
(x + -0.57) equal to 0.345976878 and -0.345976878.

Subproblem 1

x + -0.57 = 0.345976878 Simplifying x + -0.57 = 0.345976878 Reorder the terms: -0.57 + x = 0.345976878 Solving -0.57 + x = 0.345976878 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.57' to each side of the equation. -0.57 + 0.57 + x = 0.345976878 + 0.57 Combine like terms: -0.57 + 0.57 = 0.00 0.00 + x = 0.345976878 + 0.57 x = 0.345976878 + 0.57 Combine like terms: 0.345976878 + 0.57 = 0.915976878 x = 0.915976878 Simplifying x = 0.915976878

Subproblem 2

x + -0.57 = -0.345976878 Simplifying x + -0.57 = -0.345976878 Reorder the terms: -0.57 + x = -0.345976878 Solving -0.57 + x = -0.345976878 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.57' to each side of the equation. -0.57 + 0.57 + x = -0.345976878 + 0.57 Combine like terms: -0.57 + 0.57 = 0.00 0.00 + x = -0.345976878 + 0.57 x = -0.345976878 + 0.57 Combine like terms: -0.345976878 + 0.57 = 0.224023122 x = 0.224023122 Simplifying x = 0.224023122

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.915976878, 0.224023122}

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