216=(2x+14)(x+4)

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Solution for 216=(2x+14)(x+4) equation:


Simplifying
216 = (2x + 14)(x + 4)

Reorder the terms:
216 = (14 + 2x)(x + 4)

Reorder the terms:
216 = (14 + 2x)(4 + x)

Multiply (14 + 2x) * (4 + x)
216 = (14(4 + x) + 2x * (4 + x))
216 = ((4 * 14 + x * 14) + 2x * (4 + x))
216 = ((56 + 14x) + 2x * (4 + x))
216 = (56 + 14x + (4 * 2x + x * 2x))
216 = (56 + 14x + (8x + 2x2))

Combine like terms: 14x + 8x = 22x
216 = (56 + 22x + 2x2)

Solving
216 = 56 + 22x + 2x2

Solving for variable 'x'.

Combine like terms: 216 + -56 = 160
160 + -22x + -2x2 = 56 + 22x + 2x2 + -56 + -22x + -2x2

Reorder the terms:
160 + -22x + -2x2 = 56 + -56 + 22x + -22x + 2x2 + -2x2

Combine like terms: 56 + -56 = 0
160 + -22x + -2x2 = 0 + 22x + -22x + 2x2 + -2x2
160 + -22x + -2x2 = 22x + -22x + 2x2 + -2x2

Combine like terms: 22x + -22x = 0
160 + -22x + -2x2 = 0 + 2x2 + -2x2
160 + -22x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
160 + -22x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(80 + -11x + -1x2) = 0

Factor a trinomial.
2((5 + -1x)(16 + x)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(16 + x)' equal to zero and attempt to solve: Simplifying 16 + x = 0 Solving 16 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + x = 0 + -16 Combine like terms: 16 + -16 = 0 0 + x = 0 + -16 x = 0 + -16 Combine like terms: 0 + -16 = -16 x = -16 Simplifying x = -16

Solution

x = {5, -16}

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