(3x+6)(3x+5)=

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Solution for (3x+6)(3x+5)= equation: 


Simplifying
(3x + 6)(3x + 5) = 0

Reorder the terms:
(6 + 3x)(3x + 5) = 0

Reorder the terms:
(6 + 3x)(5 + 3x) = 0

Multiply (6 + 3x) * (5 + 3x)
(6(5 + 3x) + 3x * (5 + 3x)) = 0
((5 * 6 + 3x * 6) + 3x * (5 + 3x)) = 0
((30 + 18x) + 3x * (5 + 3x)) = 0
(30 + 18x + (5 * 3x + 3x * 3x)) = 0
(30 + 18x + (15x + 9x2)) = 0

Combine like terms: 18x + 15x = 33x
(30 + 33x + 9x2) = 0

Solving
30 + 33x + 9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(10 + 11x + 3x2) = 0

Factor a trinomial.
3((2 + x)(5 + 3x)) = 0

Ignore the factor 3.

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

Simplifying
2 + x = 0

Solving
2 + x = 0

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

Add '-2' to each side of the equation.
2 + -2 + x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + x = 0 + -2
x = 0 + -2

Combine like terms: 0 + -2 = -2
x = -2

Simplifying
x = -2

Subproblem 2
Set the factor '(5 + 3x)' equal to zero and attempt to solve:

Simplifying
5 + 3x = 0

Solving
5 + 3x = 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 + 3x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 3x = 0 + -5
3x = 0 + -5

Combine like terms: 0 + -5 = -5
3x = -5

Divide each side by '3'.
x = -1.666666667

Simplifying
x = -1.666666667
Solution
x = {-2, -1.666666667}

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