14x(3x-7)=29

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Solution for 14x(3x-7)=29 equation:


Simplifying
14x(3x + -7) = 29

Reorder the terms:
14x(-7 + 3x) = 29
(-7 * 14x + 3x * 14x) = 29
(-98x + 42x2) = 29

Solving
-98x + 42x2 = 29

Solving for variable 'x'.

Reorder the terms:
-29 + -98x + 42x2 = 29 + -29

Combine like terms: 29 + -29 = 0
-29 + -98x + 42x2 = 0

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

Divide each side by '42'.
-0.6904761905 + -2.333333333x + x2 = 0

Move the constant term to the right:

Add '0.6904761905' to each side of the equation.
-0.6904761905 + -2.333333333x + 0.6904761905 + x2 = 0 + 0.6904761905

Reorder the terms:
-0.6904761905 + 0.6904761905 + -2.333333333x + x2 = 0 + 0.6904761905

Combine like terms: -0.6904761905 + 0.6904761905 = 0.0000000000
0.0000000000 + -2.333333333x + x2 = 0 + 0.6904761905
-2.333333333x + x2 = 0 + 0.6904761905

Combine like terms: 0 + 0.6904761905 = 0.6904761905
-2.333333333x + x2 = 0.6904761905

The x term is -2.333333333x.  Take half its coefficient (-1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
-2.333333333x + 1.361111112 + x2 = 0.6904761905 + 1.361111112

Reorder the terms:
1.361111112 + -2.333333333x + x2 = 0.6904761905 + 1.361111112

Combine like terms: 0.6904761905 + 1.361111112 = 2.0515873025
1.361111112 + -2.333333333x + x2 = 2.0515873025

Factor a perfect square on the left side:
(x + -1.166666667)(x + -1.166666667) = 2.0515873025

Calculate the square root of the right side: 1.432336309

Break this problem into two subproblems by setting 
(x + -1.166666667) equal to 1.432336309 and -1.432336309.

Subproblem 1

x + -1.166666667 = 1.432336309 Simplifying x + -1.166666667 = 1.432336309 Reorder the terms: -1.166666667 + x = 1.432336309 Solving -1.166666667 + x = 1.432336309 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = 1.432336309 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = 1.432336309 + 1.166666667 x = 1.432336309 + 1.166666667 Combine like terms: 1.432336309 + 1.166666667 = 2.599002976 x = 2.599002976 Simplifying x = 2.599002976

Subproblem 2

x + -1.166666667 = -1.432336309 Simplifying x + -1.166666667 = -1.432336309 Reorder the terms: -1.166666667 + x = -1.432336309 Solving -1.166666667 + x = -1.432336309 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = -1.432336309 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = -1.432336309 + 1.166666667 x = -1.432336309 + 1.166666667 Combine like terms: -1.432336309 + 1.166666667 = -0.265669642 x = -0.265669642 Simplifying x = -0.265669642

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.599002976, -0.265669642}

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