6a^2+8a+9=7

Solution for 6a^2+8a+9=7 equation:

Simplifying
6a2 + 8a + 9 = 7

Reorder the terms:
9 + 8a + 6a2 = 7

Solving
9 + 8a + 6a2 = 7

Solving for variable 'a'.

Reorder the terms:
9 + -7 + 8a + 6a2 = 7 + -7

Combine like terms: 9 + -7 = 2
2 + 8a + 6a2 = 7 + -7

Combine like terms: 7 + -7 = 0
2 + 8a + 6a2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(1 + 4a + 3a2) = 0

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

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

Simplifying
1 + a = 0

Solving
1 + a = 0

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

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

Combine like terms: 1 + -1 = 0
0 + a = 0 + -1
a = 0 + -1

Combine like terms: 0 + -1 = -1
a = -1

Simplifying
a = -1
Subproblem 2
Set the factor '(1 + 3a)' equal to zero and attempt to solve:

Simplifying
1 + 3a = 0

Solving
1 + 3a = 0

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

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

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

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

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

Simplifying
a = -0.3333333333
Solution
a = {-1, -0.3333333333}