3x(x-14)+1=-4x+5

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Solution for 3x(x-14)+1=-4x+5 equation:


Simplifying
3x(x + -14) + 1 = -4x + 5

Reorder the terms:
3x(-14 + x) + 1 = -4x + 5
(-14 * 3x + x * 3x) + 1 = -4x + 5
(-42x + 3x2) + 1 = -4x + 5

Reorder the terms:
1 + -42x + 3x2 = -4x + 5

Reorder the terms:
1 + -42x + 3x2 = 5 + -4x

Solving
1 + -42x + 3x2 = 5 + -4x

Solving for variable 'x'.

Reorder the terms:
1 + -5 + -42x + 4x + 3x2 = 5 + -4x + -5 + 4x

Combine like terms: 1 + -5 = -4
-4 + -42x + 4x + 3x2 = 5 + -4x + -5 + 4x

Combine like terms: -42x + 4x = -38x
-4 + -38x + 3x2 = 5 + -4x + -5 + 4x

Reorder the terms:
-4 + -38x + 3x2 = 5 + -5 + -4x + 4x

Combine like terms: 5 + -5 = 0
-4 + -38x + 3x2 = 0 + -4x + 4x
-4 + -38x + 3x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
-4 + -38x + 3x2 = 0

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

Divide each side by '3'.
-1.333333333 + -12.66666667x + x2 = 0

Move the constant term to the right:

Add '1.333333333' to each side of the equation.
-1.333333333 + -12.66666667x + 1.333333333 + x2 = 0 + 1.333333333

Reorder the terms:
-1.333333333 + 1.333333333 + -12.66666667x + x2 = 0 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + -12.66666667x + x2 = 0 + 1.333333333
-12.66666667x + x2 = 0 + 1.333333333

Combine like terms: 0 + 1.333333333 = 1.333333333
-12.66666667x + x2 = 1.333333333

The x term is -12.66666667x.  Take half its coefficient (-6.333333335).
Square it (40.11111113) and add it to both sides.

Add '40.11111113' to each side of the equation.
-12.66666667x + 40.11111113 + x2 = 1.333333333 + 40.11111113

Reorder the terms:
40.11111113 + -12.66666667x + x2 = 1.333333333 + 40.11111113

Combine like terms: 1.333333333 + 40.11111113 = 41.444444463
40.11111113 + -12.66666667x + x2 = 41.444444463

Factor a perfect square on the left side:
(x + -6.333333335)(x + -6.333333335) = 41.444444463

Calculate the square root of the right side: 6.437735973

Break this problem into two subproblems by setting 
(x + -6.333333335) equal to 6.437735973 and -6.437735973.

Subproblem 1

x + -6.333333335 = 6.437735973 Simplifying x + -6.333333335 = 6.437735973 Reorder the terms: -6.333333335 + x = 6.437735973 Solving -6.333333335 + x = 6.437735973 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.333333335' to each side of the equation. -6.333333335 + 6.333333335 + x = 6.437735973 + 6.333333335 Combine like terms: -6.333333335 + 6.333333335 = 0.000000000 0.000000000 + x = 6.437735973 + 6.333333335 x = 6.437735973 + 6.333333335 Combine like terms: 6.437735973 + 6.333333335 = 12.771069308 x = 12.771069308 Simplifying x = 12.771069308

Subproblem 2

x + -6.333333335 = -6.437735973 Simplifying x + -6.333333335 = -6.437735973 Reorder the terms: -6.333333335 + x = -6.437735973 Solving -6.333333335 + x = -6.437735973 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.333333335' to each side of the equation. -6.333333335 + 6.333333335 + x = -6.437735973 + 6.333333335 Combine like terms: -6.333333335 + 6.333333335 = 0.000000000 0.000000000 + x = -6.437735973 + 6.333333335 x = -6.437735973 + 6.333333335 Combine like terms: -6.437735973 + 6.333333335 = -0.104402638 x = -0.104402638 Simplifying x = -0.104402638

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.771069308, -0.104402638}

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