(6+2x)*(8+2x)=72

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Solution for (6+2x)*(8+2x)=72 equation:


Simplifying
(6 + 2x)(8 + 2x) = 72

Multiply (6 + 2x) * (8 + 2x)
(6(8 + 2x) + 2x * (8 + 2x)) = 72
((8 * 6 + 2x * 6) + 2x * (8 + 2x)) = 72
((48 + 12x) + 2x * (8 + 2x)) = 72
(48 + 12x + (8 * 2x + 2x * 2x)) = 72
(48 + 12x + (16x + 4x2)) = 72

Combine like terms: 12x + 16x = 28x
(48 + 28x + 4x2) = 72

Solving
48 + 28x + 4x2 = 72

Solving for variable 'x'.

Reorder the terms:
48 + -72 + 28x + 4x2 = 72 + -72

Combine like terms: 48 + -72 = -24
-24 + 28x + 4x2 = 72 + -72

Combine like terms: 72 + -72 = 0
-24 + 28x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-6 + 7x + x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-6 + 7x + x2)' equal to zero and attempt to solve: Simplifying -6 + 7x + x2 = 0 Solving -6 + 7x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '6' to each side of the equation. -6 + 7x + 6 + x2 = 0 + 6 Reorder the terms: -6 + 6 + 7x + x2 = 0 + 6 Combine like terms: -6 + 6 = 0 0 + 7x + x2 = 0 + 6 7x + x2 = 0 + 6 Combine like terms: 0 + 6 = 6 7x + x2 = 6 The x term is 7x. Take half its coefficient (3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. 7x + 12.25 + x2 = 6 + 12.25 Reorder the terms: 12.25 + 7x + x2 = 6 + 12.25 Combine like terms: 6 + 12.25 = 18.25 12.25 + 7x + x2 = 18.25 Factor a perfect square on the left side: (x + 3.5)(x + 3.5) = 18.25 Calculate the square root of the right side: 4.272001873 Break this problem into two subproblems by setting (x + 3.5) equal to 4.272001873 and -4.272001873.

Subproblem 1

x + 3.5 = 4.272001873 Simplifying x + 3.5 = 4.272001873 Reorder the terms: 3.5 + x = 4.272001873 Solving 3.5 + x = 4.272001873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = 4.272001873 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = 4.272001873 + -3.5 x = 4.272001873 + -3.5 Combine like terms: 4.272001873 + -3.5 = 0.772001873 x = 0.772001873 Simplifying x = 0.772001873

Subproblem 2

x + 3.5 = -4.272001873 Simplifying x + 3.5 = -4.272001873 Reorder the terms: 3.5 + x = -4.272001873 Solving 3.5 + x = -4.272001873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = -4.272001873 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = -4.272001873 + -3.5 x = -4.272001873 + -3.5 Combine like terms: -4.272001873 + -3.5 = -7.772001873 x = -7.772001873 Simplifying x = -7.772001873

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.772001873, -7.772001873}

Solution

x = {0.772001873, -7.772001873}

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