(3x+1)(3x+4)=

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Solution for (3x+1)(3x+4)= equation: 


Simplifying
(3x + 1)(3x + 4) = 0

Reorder the terms:
(1 + 3x)(3x + 4) = 0

Reorder the terms:
(1 + 3x)(4 + 3x) = 0

Multiply (1 + 3x) * (4 + 3x)
(1(4 + 3x) + 3x * (4 + 3x)) = 0
((4 * 1 + 3x * 1) + 3x * (4 + 3x)) = 0
((4 + 3x) + 3x * (4 + 3x)) = 0
(4 + 3x + (4 * 3x + 3x * 3x)) = 0
(4 + 3x + (12x + 9x2)) = 0

Combine like terms: 3x + 12x = 15x
(4 + 15x + 9x2) = 0

Solving
4 + 15x + 9x2 = 0

Solving for variable 'x'.

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


Subproblem 1
Set the factor '(4 + 3x)' equal to zero and attempt to solve:

Simplifying
4 + 3x = 0

Solving
4 + 3x = 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 + 3x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 3x = 0 + -4
3x = 0 + -4

Combine like terms: 0 + -4 = -4
3x = -4

Divide each side by '3'.
x = -1.333333333

Simplifying
x = -1.333333333

Subproblem 2
Set the factor '(1 + 3x)' equal to zero and attempt to solve:

Simplifying
1 + 3x = 0

Solving
1 + 3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + 3x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 3x = 0 + -1
3x = 0 + -1

Combine like terms: 0 + -1 = -1
3x = -1

Divide each side by '3'.
x = -0.3333333333

Simplifying
x = -0.3333333333
Solution
x = {-1.333333333, -0.3333333333}

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