6x(4+7x)=x+x-x+4x+2

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Solution for 6x(4+7x)=x+x-x+4x+2 equation:


Simplifying
6x(4 + 7x) = x + x + -1x + 4x + 2
(4 * 6x + 7x * 6x) = x + x + -1x + 4x + 2
(24x + 42x2) = x + x + -1x + 4x + 2

Reorder the terms:
24x + 42x2 = 2 + x + x + -1x + 4x

Combine like terms: x + x = 2x
24x + 42x2 = 2 + 2x + -1x + 4x

Combine like terms: 2x + -1x = 1x
24x + 42x2 = 2 + 1x + 4x

Combine like terms: 1x + 4x = 5x
24x + 42x2 = 2 + 5x

Solving
24x + 42x2 = 2 + 5x

Solving for variable 'x'.

Reorder the terms:
-2 + 24x + -5x + 42x2 = 2 + 5x + -2 + -5x

Combine like terms: 24x + -5x = 19x
-2 + 19x + 42x2 = 2 + 5x + -2 + -5x

Reorder the terms:
-2 + 19x + 42x2 = 2 + -2 + 5x + -5x

Combine like terms: 2 + -2 = 0
-2 + 19x + 42x2 = 0 + 5x + -5x
-2 + 19x + 42x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-2 + 19x + 42x2 = 0

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

Divide each side by '42'.
-0.04761904762 + 0.4523809524x + x2 = 0

Move the constant term to the right:

Add '0.04761904762' to each side of the equation.
-0.04761904762 + 0.4523809524x + 0.04761904762 + x2 = 0 + 0.04761904762

Reorder the terms:
-0.04761904762 + 0.04761904762 + 0.4523809524x + x2 = 0 + 0.04761904762

Combine like terms: -0.04761904762 + 0.04761904762 = 0.00000000000
0.00000000000 + 0.4523809524x + x2 = 0 + 0.04761904762
0.4523809524x + x2 = 0 + 0.04761904762

Combine like terms: 0 + 0.04761904762 = 0.04761904762
0.4523809524x + x2 = 0.04761904762

The x term is 0.4523809524x.  Take half its coefficient (0.2261904762).
Square it (0.05116213152) and add it to both sides.

Add '0.05116213152' to each side of the equation.
0.4523809524x + 0.05116213152 + x2 = 0.04761904762 + 0.05116213152

Reorder the terms:
0.05116213152 + 0.4523809524x + x2 = 0.04761904762 + 0.05116213152

Combine like terms: 0.04761904762 + 0.05116213152 = 0.09878117914
0.05116213152 + 0.4523809524x + x2 = 0.09878117914

Factor a perfect square on the left side:
(x + 0.2261904762)(x + 0.2261904762) = 0.09878117914

Calculate the square root of the right side: 0.314294733

Break this problem into two subproblems by setting 
(x + 0.2261904762) equal to 0.314294733 and -0.314294733.

Subproblem 1

x + 0.2261904762 = 0.314294733 Simplifying x + 0.2261904762 = 0.314294733 Reorder the terms: 0.2261904762 + x = 0.314294733 Solving 0.2261904762 + x = 0.314294733 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2261904762' to each side of the equation. 0.2261904762 + -0.2261904762 + x = 0.314294733 + -0.2261904762 Combine like terms: 0.2261904762 + -0.2261904762 = 0.0000000000 0.0000000000 + x = 0.314294733 + -0.2261904762 x = 0.314294733 + -0.2261904762 Combine like terms: 0.314294733 + -0.2261904762 = 0.0881042568 x = 0.0881042568 Simplifying x = 0.0881042568

Subproblem 2

x + 0.2261904762 = -0.314294733 Simplifying x + 0.2261904762 = -0.314294733 Reorder the terms: 0.2261904762 + x = -0.314294733 Solving 0.2261904762 + x = -0.314294733 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2261904762' to each side of the equation. 0.2261904762 + -0.2261904762 + x = -0.314294733 + -0.2261904762 Combine like terms: 0.2261904762 + -0.2261904762 = 0.0000000000 0.0000000000 + x = -0.314294733 + -0.2261904762 x = -0.314294733 + -0.2261904762 Combine like terms: -0.314294733 + -0.2261904762 = -0.5404852092 x = -0.5404852092 Simplifying x = -0.5404852092

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.0881042568, -0.5404852092}

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