49(3.14)x^2-56(3.14)x+16(3.14)=0

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Solution for 49(3.14)x^2-56(3.14)x+16(3.14)=0 equation:


Simplifying
49(3.14) * x2 + -56(3.14) * x + 16(3.14) = 0

Multiply 49 * 3.14
153.86x2 + -56(3.14) * x + 16(3.14) = 0

Multiply -56 * 3.14
153.86x2 + -175.84x + 16(3.14) = 0

Multiply 16 * 3.14
153.86x2 + -175.84x + 50.24 = 0

Reorder the terms:
50.24 + -175.84x + 153.86x2 = 0

Solving
50.24 + -175.84x + 153.86x2 = 0

Solving for variable 'x'.

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

Divide each side by '153.86'.
0.3265306122 + -1.142857143x + x2 = 0

Move the constant term to the right:

Add '-0.3265306122' to each side of the equation.
0.3265306122 + -1.142857143x + -0.3265306122 + x2 = 0 + -0.3265306122

Reorder the terms:
0.3265306122 + -0.3265306122 + -1.142857143x + x2 = 0 + -0.3265306122

Combine like terms: 0.3265306122 + -0.3265306122 = 0.0000000000
0.0000000000 + -1.142857143x + x2 = 0 + -0.3265306122
-1.142857143x + x2 = 0 + -0.3265306122

Combine like terms: 0 + -0.3265306122 = -0.3265306122
-1.142857143x + x2 = -0.3265306122

The x term is -1.142857143x.  Take half its coefficient (-0.5714285715).
Square it (0.3265306123) and add it to both sides.

Add '0.3265306123' to each side of the equation.
-1.142857143x + 0.3265306123 + x2 = -0.3265306122 + 0.3265306123

Reorder the terms:
0.3265306123 + -1.142857143x + x2 = -0.3265306122 + 0.3265306123

Combine like terms: -0.3265306122 + 0.3265306123 = 0.0000000001
0.3265306123 + -1.142857143x + x2 = 0.0000000001

Factor a perfect square on the left side:
(x + -0.5714285715)(x + -0.5714285715) = 0.0000000001

Calculate the square root of the right side: 0.00001

Break this problem into two subproblems by setting 
(x + -0.5714285715) equal to 0.00001 and -0.00001.

Subproblem 1

x + -0.5714285715 = 0.00001 Simplifying x + -0.5714285715 = 0.00001 Reorder the terms: -0.5714285715 + x = 0.00001 Solving -0.5714285715 + x = 0.00001 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5714285715' to each side of the equation. -0.5714285715 + 0.5714285715 + x = 0.00001 + 0.5714285715 Combine like terms: -0.5714285715 + 0.5714285715 = 0.0000000000 0.0000000000 + x = 0.00001 + 0.5714285715 x = 0.00001 + 0.5714285715 Combine like terms: 0.00001 + 0.5714285715 = 0.5714385715 x = 0.5714385715 Simplifying x = 0.5714385715

Subproblem 2

x + -0.5714285715 = -0.00001 Simplifying x + -0.5714285715 = -0.00001 Reorder the terms: -0.5714285715 + x = -0.00001 Solving -0.5714285715 + x = -0.00001 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5714285715' to each side of the equation. -0.5714285715 + 0.5714285715 + x = -0.00001 + 0.5714285715 Combine like terms: -0.5714285715 + 0.5714285715 = 0.0000000000 0.0000000000 + x = -0.00001 + 0.5714285715 x = -0.00001 + 0.5714285715 Combine like terms: -0.00001 + 0.5714285715 = 0.5714185715 x = 0.5714185715 Simplifying x = 0.5714185715

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5714385715, 0.5714185715}

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