5(x-2)(x+2)-2-3x(x+2)=0

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Solution for 5(x-2)(x+2)-2-3x(x+2)=0 equation:


Simplifying
5(x + -2)(x + 2) + -2 + -3x(x + 2) = 0

Reorder the terms:
5(-2 + x)(x + 2) + -2 + -3x(x + 2) = 0

Reorder the terms:
5(-2 + x)(2 + x) + -2 + -3x(x + 2) = 0

Multiply (-2 + x) * (2 + x)
5(-2(2 + x) + x(2 + x)) + -2 + -3x(x + 2) = 0
5((2 * -2 + x * -2) + x(2 + x)) + -2 + -3x(x + 2) = 0
5((-4 + -2x) + x(2 + x)) + -2 + -3x(x + 2) = 0
5(-4 + -2x + (2 * x + x * x)) + -2 + -3x(x + 2) = 0
5(-4 + -2x + (2x + x2)) + -2 + -3x(x + 2) = 0

Combine like terms: -2x + 2x = 0
5(-4 + 0 + x2) + -2 + -3x(x + 2) = 0
5(-4 + x2) + -2 + -3x(x + 2) = 0
(-4 * 5 + x2 * 5) + -2 + -3x(x + 2) = 0
(-20 + 5x2) + -2 + -3x(x + 2) = 0

Reorder the terms:
-20 + 5x2 + -2 + -3x(2 + x) = 0
-20 + 5x2 + -2 + (2 * -3x + x * -3x) = 0
-20 + 5x2 + -2 + (-6x + -3x2) = 0

Reorder the terms:
-20 + -2 + -6x + 5x2 + -3x2 = 0

Combine like terms: -20 + -2 = -22
-22 + -6x + 5x2 + -3x2 = 0

Combine like terms: 5x2 + -3x2 = 2x2
-22 + -6x + 2x2 = 0

Solving
-22 + -6x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-11 + -3x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-11 + -3x + x2)' equal to zero and attempt to solve: Simplifying -11 + -3x + x2 = 0 Solving -11 + -3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '11' to each side of the equation. -11 + -3x + 11 + x2 = 0 + 11 Reorder the terms: -11 + 11 + -3x + x2 = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -3x + x2 = 0 + 11 -3x + x2 = 0 + 11 Combine like terms: 0 + 11 = 11 -3x + x2 = 11 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 11 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 11 + 2.25 Combine like terms: 11 + 2.25 = 13.25 2.25 + -3x + x2 = 13.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 13.25 Calculate the square root of the right side: 3.640054945 Break this problem into two subproblems by setting (x + -1.5) equal to 3.640054945 and -3.640054945.

Subproblem 1

x + -1.5 = 3.640054945 Simplifying x + -1.5 = 3.640054945 Reorder the terms: -1.5 + x = 3.640054945 Solving -1.5 + x = 3.640054945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 3.640054945 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 3.640054945 + 1.5 x = 3.640054945 + 1.5 Combine like terms: 3.640054945 + 1.5 = 5.140054945 x = 5.140054945 Simplifying x = 5.140054945

Subproblem 2

x + -1.5 = -3.640054945 Simplifying x + -1.5 = -3.640054945 Reorder the terms: -1.5 + x = -3.640054945 Solving -1.5 + x = -3.640054945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -3.640054945 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -3.640054945 + 1.5 x = -3.640054945 + 1.5 Combine like terms: -3.640054945 + 1.5 = -2.140054945 x = -2.140054945 Simplifying x = -2.140054945

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.140054945, -2.140054945}

Solution

x = {5.140054945, -2.140054945}

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