2x^2+9x+12=3

Solution for 2x^2+9x+12=3 equation:

Simplifying
2x2 + 9x + 12 = 3

Reorder the terms:
12 + 9x + 2x2 = 3

Solving
12 + 9x + 2x2 = 3

Solving for variable 'x'.

Reorder the terms:
12 + -3 + 9x + 2x2 = 3 + -3

Combine like terms: 12 + -3 = 9
9 + 9x + 2x2 = 3 + -3

Combine like terms: 3 + -3 = 0
9 + 9x + 2x2 = 0

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

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

Simplifying
3 + x = 0

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

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

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

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

Simplifying
3 + 2x = 0

Solving
3 + 2x = 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 + 2x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 0 + -3
2x = 0 + -3

Combine like terms: 0 + -3 = -3
2x = -3

Divide each side by '2'.
x = -1.5

Simplifying
x = -1.5
Solution
x = {-3, -1.5}