6x(-11-2x)=4x-3

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Solution for 6x(-11-2x)=4x-3 equation:


Simplifying
6x(-11 + -2x) = 4x + -3
(-11 * 6x + -2x * 6x) = 4x + -3
(-66x + -12x2) = 4x + -3

Reorder the terms:
-66x + -12x2 = -3 + 4x

Solving
-66x + -12x2 = -3 + 4x

Solving for variable 'x'.

Reorder the terms:
3 + -66x + -4x + -12x2 = -3 + 4x + 3 + -4x

Combine like terms: -66x + -4x = -70x
3 + -70x + -12x2 = -3 + 4x + 3 + -4x

Reorder the terms:
3 + -70x + -12x2 = -3 + 3 + 4x + -4x

Combine like terms: -3 + 3 = 0
3 + -70x + -12x2 = 0 + 4x + -4x
3 + -70x + -12x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
3 + -70x + -12x2 = 0

Begin completing the square.  Divide all terms by
-12 the coefficient of the squared term: 

Divide each side by '-12'.
-0.25 + 5.833333333x + x2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 5.833333333x + 0.25 + x2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 5.833333333x + x2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 5.833333333x + x2 = 0 + 0.25
5.833333333x + x2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
5.833333333x + x2 = 0.25

The x term is 5.833333333x.  Take half its coefficient (2.916666667).
Square it (8.506944446) and add it to both sides.

Add '8.506944446' to each side of the equation.
5.833333333x + 8.506944446 + x2 = 0.25 + 8.506944446

Reorder the terms:
8.506944446 + 5.833333333x + x2 = 0.25 + 8.506944446

Combine like terms: 0.25 + 8.506944446 = 8.756944446
8.506944446 + 5.833333333x + x2 = 8.756944446

Factor a perfect square on the left side:
(x + 2.916666667)(x + 2.916666667) = 8.756944446

Calculate the square root of the right side: 2.959213484

Break this problem into two subproblems by setting 
(x + 2.916666667) equal to 2.959213484 and -2.959213484.

Subproblem 1

x + 2.916666667 = 2.959213484 Simplifying x + 2.916666667 = 2.959213484 Reorder the terms: 2.916666667 + x = 2.959213484 Solving 2.916666667 + x = 2.959213484 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.916666667' to each side of the equation. 2.916666667 + -2.916666667 + x = 2.959213484 + -2.916666667 Combine like terms: 2.916666667 + -2.916666667 = 0.000000000 0.000000000 + x = 2.959213484 + -2.916666667 x = 2.959213484 + -2.916666667 Combine like terms: 2.959213484 + -2.916666667 = 0.042546817 x = 0.042546817 Simplifying x = 0.042546817

Subproblem 2

x + 2.916666667 = -2.959213484 Simplifying x + 2.916666667 = -2.959213484 Reorder the terms: 2.916666667 + x = -2.959213484 Solving 2.916666667 + x = -2.959213484 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.916666667' to each side of the equation. 2.916666667 + -2.916666667 + x = -2.959213484 + -2.916666667 Combine like terms: 2.916666667 + -2.916666667 = 0.000000000 0.000000000 + x = -2.959213484 + -2.916666667 x = -2.959213484 + -2.916666667 Combine like terms: -2.959213484 + -2.916666667 = -5.875880151 x = -5.875880151 Simplifying x = -5.875880151

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.042546817, -5.875880151}

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