a(5a+8)=-3

Solution for a(5a+8)=-3 equation:

Simplifying
a(5a + 8) = -3

Reorder the terms:
a(8 + 5a) = -3
(8 * a + 5a * a) = -3
(8a + 5a2) = -3

Solving
8a + 5a2 = -3

Solving for variable 'a'.

Reorder the terms:
3 + 8a + 5a2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + 8a + 5a2 = 0

Factor a trinomial.
(1 + a)(3 + 5a) = 0

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 '(3 + 5a)' equal to zero and attempt to solve:

Simplifying
3 + 5a = 0

Solving
3 + 5a = 0

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

Add '-3' to each side of the equation.
3 + -3 + 5a = 0 + -3

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

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

Divide each side by '5'.
a = -0.6

Simplifying
a = -0.6
Solution
a = {-1, -0.6}