(2x+6)(x-2)=(x+1)(x+3)

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Solution for (2x+6)(x-2)=(x+1)(x+3) equation:


Simplifying
(2x + 6)(x + -2) = (x + 1)(x + 3)

Reorder the terms:
(6 + 2x)(x + -2) = (x + 1)(x + 3)

Reorder the terms:
(6 + 2x)(-2 + x) = (x + 1)(x + 3)

Multiply (6 + 2x) * (-2 + x)
(6(-2 + x) + 2x * (-2 + x)) = (x + 1)(x + 3)
((-2 * 6 + x * 6) + 2x * (-2 + x)) = (x + 1)(x + 3)
((-12 + 6x) + 2x * (-2 + x)) = (x + 1)(x + 3)
(-12 + 6x + (-2 * 2x + x * 2x)) = (x + 1)(x + 3)
(-12 + 6x + (-4x + 2x2)) = (x + 1)(x + 3)

Combine like terms: 6x + -4x = 2x
(-12 + 2x + 2x2) = (x + 1)(x + 3)

Reorder the terms:
-12 + 2x + 2x2 = (1 + x)(x + 3)

Reorder the terms:
-12 + 2x + 2x2 = (1 + x)(3 + x)

Multiply (1 + x) * (3 + x)
-12 + 2x + 2x2 = (1(3 + x) + x(3 + x))
-12 + 2x + 2x2 = ((3 * 1 + x * 1) + x(3 + x))
-12 + 2x + 2x2 = ((3 + 1x) + x(3 + x))
-12 + 2x + 2x2 = (3 + 1x + (3 * x + x * x))
-12 + 2x + 2x2 = (3 + 1x + (3x + x2))

Combine like terms: 1x + 3x = 4x
-12 + 2x + 2x2 = (3 + 4x + x2)

Solving
-12 + 2x + 2x2 = 3 + 4x + x2

Solving for variable 'x'.

Reorder the terms:
-12 + -3 + 2x + -4x + 2x2 + -1x2 = 3 + 4x + x2 + -3 + -4x + -1x2

Combine like terms: -12 + -3 = -15
-15 + 2x + -4x + 2x2 + -1x2 = 3 + 4x + x2 + -3 + -4x + -1x2

Combine like terms: 2x + -4x = -2x
-15 + -2x + 2x2 + -1x2 = 3 + 4x + x2 + -3 + -4x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
-15 + -2x + 1x2 = 3 + 4x + x2 + -3 + -4x + -1x2

Reorder the terms:
-15 + -2x + 1x2 = 3 + -3 + 4x + -4x + x2 + -1x2

Combine like terms: 3 + -3 = 0
-15 + -2x + 1x2 = 0 + 4x + -4x + x2 + -1x2
-15 + -2x + 1x2 = 4x + -4x + x2 + -1x2

Combine like terms: 4x + -4x = 0
-15 + -2x + 1x2 = 0 + x2 + -1x2
-15 + -2x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-15 + -2x + 1x2 = 0

Factor a trinomial.
(-3 + -1x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-3, 5}

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