14x^2-45x-4=0

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Solution for 14x^2-45x-4=0 equation:


Simplifying
14x2 + -45x + -4 = 0

Reorder the terms:
-4 + -45x + 14x2 = 0

Solving
-4 + -45x + 14x2 = 0

Solving for variable 'x'.

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

Divide each side by '14'.
-0.2857142857 + -3.214285714x + x2 = 0

Move the constant term to the right:

Add '0.2857142857' to each side of the equation.
-0.2857142857 + -3.214285714x + 0.2857142857 + x2 = 0 + 0.2857142857

Reorder the terms:
-0.2857142857 + 0.2857142857 + -3.214285714x + x2 = 0 + 0.2857142857

Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000
0.0000000000 + -3.214285714x + x2 = 0 + 0.2857142857
-3.214285714x + x2 = 0 + 0.2857142857

Combine like terms: 0 + 0.2857142857 = 0.2857142857
-3.214285714x + x2 = 0.2857142857

The x term is -3.214285714x.  Take half its coefficient (-1.607142857).
Square it (2.582908163) and add it to both sides.

Add '2.582908163' to each side of the equation.
-3.214285714x + 2.582908163 + x2 = 0.2857142857 + 2.582908163

Reorder the terms:
2.582908163 + -3.214285714x + x2 = 0.2857142857 + 2.582908163

Combine like terms: 0.2857142857 + 2.582908163 = 2.8686224487
2.582908163 + -3.214285714x + x2 = 2.8686224487

Factor a perfect square on the left side:
(x + -1.607142857)(x + -1.607142857) = 2.8686224487

Calculate the square root of the right side: 1.693700814

Break this problem into two subproblems by setting 
(x + -1.607142857) equal to 1.693700814 and -1.693700814.

Subproblem 1

x + -1.607142857 = 1.693700814 Simplifying x + -1.607142857 = 1.693700814 Reorder the terms: -1.607142857 + x = 1.693700814 Solving -1.607142857 + x = 1.693700814 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.607142857' to each side of the equation. -1.607142857 + 1.607142857 + x = 1.693700814 + 1.607142857 Combine like terms: -1.607142857 + 1.607142857 = 0.000000000 0.000000000 + x = 1.693700814 + 1.607142857 x = 1.693700814 + 1.607142857 Combine like terms: 1.693700814 + 1.607142857 = 3.300843671 x = 3.300843671 Simplifying x = 3.300843671

Subproblem 2

x + -1.607142857 = -1.693700814 Simplifying x + -1.607142857 = -1.693700814 Reorder the terms: -1.607142857 + x = -1.693700814 Solving -1.607142857 + x = -1.693700814 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.607142857' to each side of the equation. -1.607142857 + 1.607142857 + x = -1.693700814 + 1.607142857 Combine like terms: -1.607142857 + 1.607142857 = 0.000000000 0.000000000 + x = -1.693700814 + 1.607142857 x = -1.693700814 + 1.607142857 Combine like terms: -1.693700814 + 1.607142857 = -0.086557957 x = -0.086557957 Simplifying x = -0.086557957

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.300843671, -0.086557957}

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