3x(2x+1)=108

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Solution for 3x(2x+1)=108 equation:


Simplifying
3x(2x + 1) = 108

Reorder the terms:
3x(1 + 2x) = 108
(1 * 3x + 2x * 3x) = 108
(3x + 6x2) = 108

Solving
3x + 6x2 = 108

Solving for variable 'x'.

Reorder the terms:
-108 + 3x + 6x2 = 108 + -108

Combine like terms: 108 + -108 = 0
-108 + 3x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-36 + x + 2x2) = 0

Factor a trinomial.
3((-9 + -2x)(4 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-9 + -2x)' equal to zero and attempt to solve: Simplifying -9 + -2x = 0 Solving -9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -2x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2x = 0 + 9 -2x = 0 + 9 Combine like terms: 0 + 9 = 9 -2x = 9 Divide each side by '-2'. x = -4.5 Simplifying x = -4.5

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-4.5, 4}

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