14x^2-29x+.84=0

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Solution for 14x^2-29x+.84=0 equation:


Simplifying
14x2 + -29x + 0.84 = 0

Reorder the terms:
0.84 + -29x + 14x2 = 0

Solving
0.84 + -29x + 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'.
0.06 + -2.071428571x + x2 = 0

Move the constant term to the right:

Add '-0.06' to each side of the equation.
0.06 + -2.071428571x + -0.06 + x2 = 0 + -0.06

Reorder the terms:
0.06 + -0.06 + -2.071428571x + x2 = 0 + -0.06

Combine like terms: 0.06 + -0.06 = 0.00
0.00 + -2.071428571x + x2 = 0 + -0.06
-2.071428571x + x2 = 0 + -0.06

Combine like terms: 0 + -0.06 = -0.06
-2.071428571x + x2 = -0.06

The x term is -2.071428571x.  Take half its coefficient (-1.035714286).
Square it (1.072704082) and add it to both sides.

Add '1.072704082' to each side of the equation.
-2.071428571x + 1.072704082 + x2 = -0.06 + 1.072704082

Reorder the terms:
1.072704082 + -2.071428571x + x2 = -0.06 + 1.072704082

Combine like terms: -0.06 + 1.072704082 = 1.012704082
1.072704082 + -2.071428571x + x2 = 1.012704082

Factor a perfect square on the left side:
(x + -1.035714286)(x + -1.035714286) = 1.012704082

Calculate the square root of the right side: 1.006331994

Break this problem into two subproblems by setting 
(x + -1.035714286) equal to 1.006331994 and -1.006331994.

Subproblem 1

x + -1.035714286 = 1.006331994 Simplifying x + -1.035714286 = 1.006331994 Reorder the terms: -1.035714286 + x = 1.006331994 Solving -1.035714286 + x = 1.006331994 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.035714286' to each side of the equation. -1.035714286 + 1.035714286 + x = 1.006331994 + 1.035714286 Combine like terms: -1.035714286 + 1.035714286 = 0.000000000 0.000000000 + x = 1.006331994 + 1.035714286 x = 1.006331994 + 1.035714286 Combine like terms: 1.006331994 + 1.035714286 = 2.04204628 x = 2.04204628 Simplifying x = 2.04204628

Subproblem 2

x + -1.035714286 = -1.006331994 Simplifying x + -1.035714286 = -1.006331994 Reorder the terms: -1.035714286 + x = -1.006331994 Solving -1.035714286 + x = -1.006331994 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.035714286' to each side of the equation. -1.035714286 + 1.035714286 + x = -1.006331994 + 1.035714286 Combine like terms: -1.035714286 + 1.035714286 = 0.000000000 0.000000000 + x = -1.006331994 + 1.035714286 x = -1.006331994 + 1.035714286 Combine like terms: -1.006331994 + 1.035714286 = 0.029382292 x = 0.029382292 Simplifying x = 0.029382292

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.04204628, 0.029382292}

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