(2x+4)(7x+14)=180

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Solution for (2x+4)(7x+14)=180 equation:


Simplifying
(2x + 4)(7x + 14) = 180

Reorder the terms:
(4 + 2x)(7x + 14) = 180

Reorder the terms:
(4 + 2x)(14 + 7x) = 180

Multiply (4 + 2x) * (14 + 7x)
(4(14 + 7x) + 2x * (14 + 7x)) = 180
((14 * 4 + 7x * 4) + 2x * (14 + 7x)) = 180
((56 + 28x) + 2x * (14 + 7x)) = 180
(56 + 28x + (14 * 2x + 7x * 2x)) = 180
(56 + 28x + (28x + 14x2)) = 180

Combine like terms: 28x + 28x = 56x
(56 + 56x + 14x2) = 180

Solving
56 + 56x + 14x2 = 180

Solving for variable 'x'.

Reorder the terms:
56 + -180 + 56x + 14x2 = 180 + -180

Combine like terms: 56 + -180 = -124
-124 + 56x + 14x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-124 + 56x + 14x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-62 + 28x + 7x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-62 + 28x + 7x2)' equal to zero and attempt to solve: Simplifying -62 + 28x + 7x2 = 0 Solving -62 + 28x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -8.857142857 + 4x + x2 = 0 Move the constant term to the right: Add '8.857142857' to each side of the equation. -8.857142857 + 4x + 8.857142857 + x2 = 0 + 8.857142857 Reorder the terms: -8.857142857 + 8.857142857 + 4x + x2 = 0 + 8.857142857 Combine like terms: -8.857142857 + 8.857142857 = 0.000000000 0.000000000 + 4x + x2 = 0 + 8.857142857 4x + x2 = 0 + 8.857142857 Combine like terms: 0 + 8.857142857 = 8.857142857 4x + x2 = 8.857142857 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 8.857142857 + 4 Reorder the terms: 4 + 4x + x2 = 8.857142857 + 4 Combine like terms: 8.857142857 + 4 = 12.857142857 4 + 4x + x2 = 12.857142857 Factor a perfect square on the left side: (x + 2)(x + 2) = 12.857142857 Calculate the square root of the right side: 3.585685828 Break this problem into two subproblems by setting (x + 2) equal to 3.585685828 and -3.585685828.

Subproblem 1

x + 2 = 3.585685828 Simplifying x + 2 = 3.585685828 Reorder the terms: 2 + x = 3.585685828 Solving 2 + x = 3.585685828 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 3.585685828 + -2 Combine like terms: 2 + -2 = 0 0 + x = 3.585685828 + -2 x = 3.585685828 + -2 Combine like terms: 3.585685828 + -2 = 1.585685828 x = 1.585685828 Simplifying x = 1.585685828

Subproblem 2

x + 2 = -3.585685828 Simplifying x + 2 = -3.585685828 Reorder the terms: 2 + x = -3.585685828 Solving 2 + x = -3.585685828 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -3.585685828 + -2 Combine like terms: 2 + -2 = 0 0 + x = -3.585685828 + -2 x = -3.585685828 + -2 Combine like terms: -3.585685828 + -2 = -5.585685828 x = -5.585685828 Simplifying x = -5.585685828

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.585685828, -5.585685828}

Solution

x = {1.585685828, -5.585685828}

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