(2x+6)(2x-6)=(2x+9)(3x-4)

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Solution for (2x+6)(2x-6)=(2x+9)(3x-4) equation:


Simplifying
(2x + 6)(2x + -6) = (2x + 9)(3x + -4)

Reorder the terms:
(6 + 2x)(2x + -6) = (2x + 9)(3x + -4)

Reorder the terms:
(6 + 2x)(-6 + 2x) = (2x + 9)(3x + -4)

Multiply (6 + 2x) * (-6 + 2x)
(6(-6 + 2x) + 2x * (-6 + 2x)) = (2x + 9)(3x + -4)
((-6 * 6 + 2x * 6) + 2x * (-6 + 2x)) = (2x + 9)(3x + -4)
((-36 + 12x) + 2x * (-6 + 2x)) = (2x + 9)(3x + -4)
(-36 + 12x + (-6 * 2x + 2x * 2x)) = (2x + 9)(3x + -4)
(-36 + 12x + (-12x + 4x2)) = (2x + 9)(3x + -4)

Combine like terms: 12x + -12x = 0
(-36 + 0 + 4x2) = (2x + 9)(3x + -4)
(-36 + 4x2) = (2x + 9)(3x + -4)

Reorder the terms:
-36 + 4x2 = (9 + 2x)(3x + -4)

Reorder the terms:
-36 + 4x2 = (9 + 2x)(-4 + 3x)

Multiply (9 + 2x) * (-4 + 3x)
-36 + 4x2 = (9(-4 + 3x) + 2x * (-4 + 3x))
-36 + 4x2 = ((-4 * 9 + 3x * 9) + 2x * (-4 + 3x))
-36 + 4x2 = ((-36 + 27x) + 2x * (-4 + 3x))
-36 + 4x2 = (-36 + 27x + (-4 * 2x + 3x * 2x))
-36 + 4x2 = (-36 + 27x + (-8x + 6x2))

Combine like terms: 27x + -8x = 19x
-36 + 4x2 = (-36 + 19x + 6x2)

Add '36' to each side of the equation.
-36 + 36 + 4x2 = -36 + 19x + 36 + 6x2

Combine like terms: -36 + 36 = 0
0 + 4x2 = -36 + 19x + 36 + 6x2
4x2 = -36 + 19x + 36 + 6x2

Reorder the terms:
4x2 = -36 + 36 + 19x + 6x2

Combine like terms: -36 + 36 = 0
4x2 = 0 + 19x + 6x2
4x2 = 19x + 6x2

Solving
4x2 = 19x + 6x2

Solving for variable 'x'.

Reorder the terms:
-19x + 4x2 + -6x2 = 19x + 6x2 + -19x + -6x2

Combine like terms: 4x2 + -6x2 = -2x2
-19x + -2x2 = 19x + 6x2 + -19x + -6x2

Reorder the terms:
-19x + -2x2 = 19x + -19x + 6x2 + -6x2

Combine like terms: 19x + -19x = 0
-19x + -2x2 = 0 + 6x2 + -6x2
-19x + -2x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
-19x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '-1x'.
-1x(19 + 2x) = 0

Ignore the factor -1.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(19 + 2x)' equal to zero and attempt to solve: Simplifying 19 + 2x = 0 Solving 19 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + 2x = 0 + -19 Combine like terms: 19 + -19 = 0 0 + 2x = 0 + -19 2x = 0 + -19 Combine like terms: 0 + -19 = -19 2x = -19 Divide each side by '2'. x = -9.5 Simplifying x = -9.5

Solution

x = {0, -9.5}

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