45x^2-49x+12.25=0

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Solution for 45x^2-49x+12.25=0 equation:


Simplifying
45x2 + -49x + 12.25 = 0

Reorder the terms:
12.25 + -49x + 45x2 = 0

Solving
12.25 + -49x + 45x2 = 0

Solving for variable 'x'.

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

Divide each side by '45'.
0.2722222222 + -1.088888889x + x2 = 0

Move the constant term to the right:

Add '-0.2722222222' to each side of the equation.
0.2722222222 + -1.088888889x + -0.2722222222 + x2 = 0 + -0.2722222222

Reorder the terms:
0.2722222222 + -0.2722222222 + -1.088888889x + x2 = 0 + -0.2722222222

Combine like terms: 0.2722222222 + -0.2722222222 = 0.0000000000
0.0000000000 + -1.088888889x + x2 = 0 + -0.2722222222
-1.088888889x + x2 = 0 + -0.2722222222

Combine like terms: 0 + -0.2722222222 = -0.2722222222
-1.088888889x + x2 = -0.2722222222

The x term is -1.088888889x.  Take half its coefficient (-0.5444444445).
Square it (0.2964197531) and add it to both sides.

Add '0.2964197531' to each side of the equation.
-1.088888889x + 0.2964197531 + x2 = -0.2722222222 + 0.2964197531

Reorder the terms:
0.2964197531 + -1.088888889x + x2 = -0.2722222222 + 0.2964197531

Combine like terms: -0.2722222222 + 0.2964197531 = 0.0241975309
0.2964197531 + -1.088888889x + x2 = 0.0241975309

Factor a perfect square on the left side:
(x + -0.5444444445)(x + -0.5444444445) = 0.0241975309

Calculate the square root of the right side: 0.155555556

Break this problem into two subproblems by setting 
(x + -0.5444444445) equal to 0.155555556 and -0.155555556.

Subproblem 1

x + -0.5444444445 = 0.155555556 Simplifying x + -0.5444444445 = 0.155555556 Reorder the terms: -0.5444444445 + x = 0.155555556 Solving -0.5444444445 + x = 0.155555556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5444444445' to each side of the equation. -0.5444444445 + 0.5444444445 + x = 0.155555556 + 0.5444444445 Combine like terms: -0.5444444445 + 0.5444444445 = 0.0000000000 0.0000000000 + x = 0.155555556 + 0.5444444445 x = 0.155555556 + 0.5444444445 Combine like terms: 0.155555556 + 0.5444444445 = 0.7000000005 x = 0.7000000005 Simplifying x = 0.7000000005

Subproblem 2

x + -0.5444444445 = -0.155555556 Simplifying x + -0.5444444445 = -0.155555556 Reorder the terms: -0.5444444445 + x = -0.155555556 Solving -0.5444444445 + x = -0.155555556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5444444445' to each side of the equation. -0.5444444445 + 0.5444444445 + x = -0.155555556 + 0.5444444445 Combine like terms: -0.5444444445 + 0.5444444445 = 0.0000000000 0.0000000000 + x = -0.155555556 + 0.5444444445 x = -0.155555556 + 0.5444444445 Combine like terms: -0.155555556 + 0.5444444445 = 0.3888888885 x = 0.3888888885 Simplifying x = 0.3888888885

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.7000000005, 0.3888888885}

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