4y^2+9y=-2

Solution for 4y^2+9y=-2 equation:

Simplifying
4y2 + 9y = -2

Reorder the terms:
9y + 4y2 = -2

Solving
9y + 4y2 = -2

Solving for variable 'y'.

Reorder the terms:
2 + 9y + 4y2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + 9y + 4y2 = 0

Factor a trinomial.
(2 + y)(1 + 4y) = 0

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

Simplifying
2 + y = 0

Solving
2 + y = 0

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

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

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

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

Simplifying
y = -2
Subproblem 2
Set the factor '(1 + 4y)' equal to zero and attempt to solve:

Simplifying
1 + 4y = 0

Solving
1 + 4y = 0

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

Add '-1' to each side of the equation.
1 + -1 + 4y = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 4y = 0 + -1
4y = 0 + -1

Combine like terms: 0 + -1 = -1
4y = -1

Divide each side by '4'.
y = -0.25

Simplifying
y = -0.25
Solution
y = {-2, -0.25}