3y^2+5y+6.25=18.25

Solution for 3y^2+5y+6.25=18.25 equation:

Simplifying
3y2 + 5y + 6.25 = 18.25

Reorder the terms:
6.25 + 5y + 3y2 = 18.25

Solving
6.25 + 5y + 3y2 = 18.25

Solving for variable 'y'.

Reorder the terms:
6.25 + -18.25 + 5y + 3y2 = 18.25 + -18.25

Combine like terms: 6.25 + -18.25 = -12
-12 + 5y + 3y2 = 18.25 + -18.25

Combine like terms: 18.25 + -18.25 = 0.00
-12 + 5y + 3y2 = 0.00

Factor a trinomial.
(-3 + -1y)(4 + -3y) = 0.00

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

Simplifying
-3 + -1y = 0

Solving
-3 + -1y = 0

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

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

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

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

Divide each side by '-1'.
y = -3

Simplifying
y = -3
Subproblem 2
Set the factor '(4 + -3y)' equal to zero and attempt to solve:

Simplifying
4 + -3y = 0

Solving
4 + -3y = 0

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

Add '-4' to each side of the equation.
4 + -4 + -3y = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -3y = 0 + -4
-3y = 0 + -4

Combine like terms: 0 + -4 = -4
-3y = -4

Divide each side by '-3'.
y = 1.333333333

Simplifying
y = 1.333333333
Solution
y = {-3, 1.333333333}