3x(2x+8)=2(4x+8)

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Solution for 3x(2x+8)=2(4x+8) equation:


Simplifying
3x(2x + 8) = 2(4x + 8)

Reorder the terms:
3x(8 + 2x) = 2(4x + 8)
(8 * 3x + 2x * 3x) = 2(4x + 8)
(24x + 6x2) = 2(4x + 8)

Reorder the terms:
24x + 6x2 = 2(8 + 4x)
24x + 6x2 = (8 * 2 + 4x * 2)
24x + 6x2 = (16 + 8x)

Solving
24x + 6x2 = 16 + 8x

Solving for variable 'x'.

Reorder the terms:
-16 + 24x + -8x + 6x2 = 16 + 8x + -16 + -8x

Combine like terms: 24x + -8x = 16x
-16 + 16x + 6x2 = 16 + 8x + -16 + -8x

Reorder the terms:
-16 + 16x + 6x2 = 16 + -16 + 8x + -8x

Combine like terms: 16 + -16 = 0
-16 + 16x + 6x2 = 0 + 8x + -8x
-16 + 16x + 6x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
-16 + 16x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-8 + 8x + 3x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-8 + 8x + 3x2)' equal to zero and attempt to solve: Simplifying -8 + 8x + 3x2 = 0 Solving -8 + 8x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -2.666666667 + 2.666666667x + x2 = 0 Move the constant term to the right: Add '2.666666667' to each side of the equation. -2.666666667 + 2.666666667x + 2.666666667 + x2 = 0 + 2.666666667 Reorder the terms: -2.666666667 + 2.666666667 + 2.666666667x + x2 = 0 + 2.666666667 Combine like terms: -2.666666667 + 2.666666667 = 0.000000000 0.000000000 + 2.666666667x + x2 = 0 + 2.666666667 2.666666667x + x2 = 0 + 2.666666667 Combine like terms: 0 + 2.666666667 = 2.666666667 2.666666667x + x2 = 2.666666667 The x term is 2.666666667x. Take half its coefficient (1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. 2.666666667x + 1.777777780 + x2 = 2.666666667 + 1.777777780 Reorder the terms: 1.777777780 + 2.666666667x + x2 = 2.666666667 + 1.777777780 Combine like terms: 2.666666667 + 1.777777780 = 4.444444447 1.777777780 + 2.666666667x + x2 = 4.444444447 Factor a perfect square on the left side: (x + 1.333333334)(x + 1.333333334) = 4.444444447 Calculate the square root of the right side: 2.108185107 Break this problem into two subproblems by setting (x + 1.333333334) equal to 2.108185107 and -2.108185107.

Subproblem 1

x + 1.333333334 = 2.108185107 Simplifying x + 1.333333334 = 2.108185107 Reorder the terms: 1.333333334 + x = 2.108185107 Solving 1.333333334 + x = 2.108185107 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = 2.108185107 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = 2.108185107 + -1.333333334 x = 2.108185107 + -1.333333334 Combine like terms: 2.108185107 + -1.333333334 = 0.774851773 x = 0.774851773 Simplifying x = 0.774851773

Subproblem 2

x + 1.333333334 = -2.108185107 Simplifying x + 1.333333334 = -2.108185107 Reorder the terms: 1.333333334 + x = -2.108185107 Solving 1.333333334 + x = -2.108185107 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = -2.108185107 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = -2.108185107 + -1.333333334 x = -2.108185107 + -1.333333334 Combine like terms: -2.108185107 + -1.333333334 = -3.441518441 x = -3.441518441 Simplifying x = -3.441518441

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.774851773, -3.441518441}

Solution

x = {0.774851773, -3.441518441}

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