21x^2+17x+12=10

Solution for 21x^2+17x+12=10 equation:

Simplifying
21x2 + 17x + 12 = 10

Reorder the terms:
12 + 17x + 21x2 = 10

Solving
12 + 17x + 21x2 = 10

Solving for variable 'x'.

Reorder the terms:
12 + -10 + 17x + 21x2 = 10 + -10

Combine like terms: 12 + -10 = 2
2 + 17x + 21x2 = 10 + -10

Combine like terms: 10 + -10 = 0
2 + 17x + 21x2 = 0

Factor a trinomial.
(2 + 3x)(1 + 7x) = 0

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

Simplifying
2 + 3x = 0

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

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

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

Divide each side by '3'.
x = -0.6666666667

Simplifying
x = -0.6666666667
Subproblem 2
Set the factor '(1 + 7x)' equal to zero and attempt to solve:

Simplifying
1 + 7x = 0

Solving
1 + 7x = 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 + 7x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 7x = 0 + -1
7x = 0 + -1

Combine like terms: 0 + -1 = -1
7x = -1

Divide each side by '7'.
x = -0.1428571429

Simplifying
x = -0.1428571429
Solution
x = {-0.6666666667, -0.1428571429}