5(4x+6)-2(x-4)=7x(x-2)-48

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Solution for 5(4x+6)-2(x-4)=7x(x-2)-48 equation:


Simplifying
5(4x + 6) + -2(x + -4) = 7x(x + -2) + -48

Reorder the terms:
5(6 + 4x) + -2(x + -4) = 7x(x + -2) + -48
(6 * 5 + 4x * 5) + -2(x + -4) = 7x(x + -2) + -48
(30 + 20x) + -2(x + -4) = 7x(x + -2) + -48

Reorder the terms:
30 + 20x + -2(-4 + x) = 7x(x + -2) + -48
30 + 20x + (-4 * -2 + x * -2) = 7x(x + -2) + -48
30 + 20x + (8 + -2x) = 7x(x + -2) + -48

Reorder the terms:
30 + 8 + 20x + -2x = 7x(x + -2) + -48

Combine like terms: 30 + 8 = 38
38 + 20x + -2x = 7x(x + -2) + -48

Combine like terms: 20x + -2x = 18x
38 + 18x = 7x(x + -2) + -48

Reorder the terms:
38 + 18x = 7x(-2 + x) + -48
38 + 18x = (-2 * 7x + x * 7x) + -48
38 + 18x = (-14x + 7x2) + -48

Reorder the terms:
38 + 18x = -48 + -14x + 7x2

Solving
38 + 18x = -48 + -14x + 7x2

Solving for variable 'x'.

Reorder the terms:
38 + 48 + 18x + 14x + -7x2 = -48 + -14x + 7x2 + 48 + 14x + -7x2

Combine like terms: 38 + 48 = 86
86 + 18x + 14x + -7x2 = -48 + -14x + 7x2 + 48 + 14x + -7x2

Combine like terms: 18x + 14x = 32x
86 + 32x + -7x2 = -48 + -14x + 7x2 + 48 + 14x + -7x2

Reorder the terms:
86 + 32x + -7x2 = -48 + 48 + -14x + 14x + 7x2 + -7x2

Combine like terms: -48 + 48 = 0
86 + 32x + -7x2 = 0 + -14x + 14x + 7x2 + -7x2
86 + 32x + -7x2 = -14x + 14x + 7x2 + -7x2

Combine like terms: -14x + 14x = 0
86 + 32x + -7x2 = 0 + 7x2 + -7x2
86 + 32x + -7x2 = 7x2 + -7x2

Combine like terms: 7x2 + -7x2 = 0
86 + 32x + -7x2 = 0

Begin completing the square.  Divide all terms by
-7 the coefficient of the squared term: 

Divide each side by '-7'.
-12.28571429 + -4.571428571x + x2 = 0

Move the constant term to the right:

Add '12.28571429' to each side of the equation.
-12.28571429 + -4.571428571x + 12.28571429 + x2 = 0 + 12.28571429

Reorder the terms:
-12.28571429 + 12.28571429 + -4.571428571x + x2 = 0 + 12.28571429

Combine like terms: -12.28571429 + 12.28571429 = 0.00000000
0.00000000 + -4.571428571x + x2 = 0 + 12.28571429
-4.571428571x + x2 = 0 + 12.28571429

Combine like terms: 0 + 12.28571429 = 12.28571429
-4.571428571x + x2 = 12.28571429

The x term is -4.571428571x.  Take half its coefficient (-2.285714286).
Square it (5.224489797) and add it to both sides.

Add '5.224489797' to each side of the equation.
-4.571428571x + 5.224489797 + x2 = 12.28571429 + 5.224489797

Reorder the terms:
5.224489797 + -4.571428571x + x2 = 12.28571429 + 5.224489797

Combine like terms: 12.28571429 + 5.224489797 = 17.510204087
5.224489797 + -4.571428571x + x2 = 17.510204087

Factor a perfect square on the left side:
(x + -2.285714286)(x + -2.285714286) = 17.510204087

Calculate the square root of the right side: 4.184519577

Break this problem into two subproblems by setting 
(x + -2.285714286) equal to 4.184519577 and -4.184519577.

Subproblem 1

x + -2.285714286 = 4.184519577 Simplifying x + -2.285714286 = 4.184519577 Reorder the terms: -2.285714286 + x = 4.184519577 Solving -2.285714286 + x = 4.184519577 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.285714286' to each side of the equation. -2.285714286 + 2.285714286 + x = 4.184519577 + 2.285714286 Combine like terms: -2.285714286 + 2.285714286 = 0.000000000 0.000000000 + x = 4.184519577 + 2.285714286 x = 4.184519577 + 2.285714286 Combine like terms: 4.184519577 + 2.285714286 = 6.470233863 x = 6.470233863 Simplifying x = 6.470233863

Subproblem 2

x + -2.285714286 = -4.184519577 Simplifying x + -2.285714286 = -4.184519577 Reorder the terms: -2.285714286 + x = -4.184519577 Solving -2.285714286 + x = -4.184519577 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.285714286' to each side of the equation. -2.285714286 + 2.285714286 + x = -4.184519577 + 2.285714286 Combine like terms: -2.285714286 + 2.285714286 = 0.000000000 0.000000000 + x = -4.184519577 + 2.285714286 x = -4.184519577 + 2.285714286 Combine like terms: -4.184519577 + 2.285714286 = -1.898805291 x = -1.898805291 Simplifying x = -1.898805291

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.470233863, -1.898805291}

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