14x(8+7x)=5-6x

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Solution for 14x(8+7x)=5-6x equation:


Simplifying
14x(8 + 7x) = 5 + -6x
(8 * 14x + 7x * 14x) = 5 + -6x
(112x + 98x2) = 5 + -6x

Solving
112x + 98x2 = 5 + -6x

Solving for variable 'x'.

Reorder the terms:
-5 + 112x + 6x + 98x2 = 5 + -6x + -5 + 6x

Combine like terms: 112x + 6x = 118x
-5 + 118x + 98x2 = 5 + -6x + -5 + 6x

Reorder the terms:
-5 + 118x + 98x2 = 5 + -5 + -6x + 6x

Combine like terms: 5 + -5 = 0
-5 + 118x + 98x2 = 0 + -6x + 6x
-5 + 118x + 98x2 = -6x + 6x

Combine like terms: -6x + 6x = 0
-5 + 118x + 98x2 = 0

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

Divide each side by '98'.
-0.05102040816 + 1.204081633x + x2 = 0

Move the constant term to the right:

Add '0.05102040816' to each side of the equation.
-0.05102040816 + 1.204081633x + 0.05102040816 + x2 = 0 + 0.05102040816

Reorder the terms:
-0.05102040816 + 0.05102040816 + 1.204081633x + x2 = 0 + 0.05102040816

Combine like terms: -0.05102040816 + 0.05102040816 = 0.00000000000
0.00000000000 + 1.204081633x + x2 = 0 + 0.05102040816
1.204081633x + x2 = 0 + 0.05102040816

Combine like terms: 0 + 0.05102040816 = 0.05102040816
1.204081633x + x2 = 0.05102040816

The x term is 1.204081633x.  Take half its coefficient (0.6020408165).
Square it (0.3624531447) and add it to both sides.

Add '0.3624531447' to each side of the equation.
1.204081633x + 0.3624531447 + x2 = 0.05102040816 + 0.3624531447

Reorder the terms:
0.3624531447 + 1.204081633x + x2 = 0.05102040816 + 0.3624531447

Combine like terms: 0.05102040816 + 0.3624531447 = 0.41347355286
0.3624531447 + 1.204081633x + x2 = 0.41347355286

Factor a perfect square on the left side:
(x + 0.6020408165)(x + 0.6020408165) = 0.41347355286

Calculate the square root of the right side: 0.643019092

Break this problem into two subproblems by setting 
(x + 0.6020408165) equal to 0.643019092 and -0.643019092.

Subproblem 1

x + 0.6020408165 = 0.643019092 Simplifying x + 0.6020408165 = 0.643019092 Reorder the terms: 0.6020408165 + x = 0.643019092 Solving 0.6020408165 + x = 0.643019092 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6020408165' to each side of the equation. 0.6020408165 + -0.6020408165 + x = 0.643019092 + -0.6020408165 Combine like terms: 0.6020408165 + -0.6020408165 = 0.0000000000 0.0000000000 + x = 0.643019092 + -0.6020408165 x = 0.643019092 + -0.6020408165 Combine like terms: 0.643019092 + -0.6020408165 = 0.0409782755 x = 0.0409782755 Simplifying x = 0.0409782755

Subproblem 2

x + 0.6020408165 = -0.643019092 Simplifying x + 0.6020408165 = -0.643019092 Reorder the terms: 0.6020408165 + x = -0.643019092 Solving 0.6020408165 + x = -0.643019092 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6020408165' to each side of the equation. 0.6020408165 + -0.6020408165 + x = -0.643019092 + -0.6020408165 Combine like terms: 0.6020408165 + -0.6020408165 = 0.0000000000 0.0000000000 + x = -0.643019092 + -0.6020408165 x = -0.643019092 + -0.6020408165 Combine like terms: -0.643019092 + -0.6020408165 = -1.2450599085 x = -1.2450599085 Simplifying x = -1.2450599085

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.0409782755, -1.2450599085}

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