0=4x^2-14x+3

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Solution for 0=4x^2-14x+3 equation:


Simplifying
0 = 4x2 + -14x + 3

Reorder the terms:
0 = 3 + -14x + 4x2

Solving
0 = 3 + -14x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + -3 = -3
-3 + 14x + -4x2 = 3 + -14x + 4x2 + -3 + 14x + -4x2

Reorder the terms:
-3 + 14x + -4x2 = 3 + -3 + -14x + 14x + 4x2 + -4x2

Combine like terms: 3 + -3 = 0
-3 + 14x + -4x2 = 0 + -14x + 14x + 4x2 + -4x2
-3 + 14x + -4x2 = -14x + 14x + 4x2 + -4x2

Combine like terms: -14x + 14x = 0
-3 + 14x + -4x2 = 0 + 4x2 + -4x2
-3 + 14x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-3 + 14x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
0.75 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -3.5x + -0.75 + x2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -3.5x + x2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -3.5x + x2 = 0 + -0.75
-3.5x + x2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-3.5x + x2 = -0.75

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = -0.75 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -0.75 + 3.0625

Combine like terms: -0.75 + 3.0625 = 2.3125
3.0625 + -3.5x + x2 = 2.3125

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = 2.3125

Calculate the square root of the right side: 1.520690633

Break this problem into two subproblems by setting 
(x + -1.75) equal to 1.520690633 and -1.520690633.

Subproblem 1

x + -1.75 = 1.520690633 Simplifying x + -1.75 = 1.520690633 Reorder the terms: -1.75 + x = 1.520690633 Solving -1.75 + x = 1.520690633 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 1.520690633 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 1.520690633 + 1.75 x = 1.520690633 + 1.75 Combine like terms: 1.520690633 + 1.75 = 3.270690633 x = 3.270690633 Simplifying x = 3.270690633

Subproblem 2

x + -1.75 = -1.520690633 Simplifying x + -1.75 = -1.520690633 Reorder the terms: -1.75 + x = -1.520690633 Solving -1.75 + x = -1.520690633 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -1.520690633 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -1.520690633 + 1.75 x = -1.520690633 + 1.75 Combine like terms: -1.520690633 + 1.75 = 0.229309367 x = 0.229309367 Simplifying x = 0.229309367

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.270690633, 0.229309367}

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