(3y-1)(4y+5)=

Solution for (3y-1)(4y+5)= equation:

Simplifying
(3y + -1)(4y + 5) = 0

Reorder the terms:
(-1 + 3y)(4y + 5) = 0

Reorder the terms:
(-1 + 3y)(5 + 4y) = 0

Multiply (-1 + 3y) * (5 + 4y)
(-1(5 + 4y) + 3y * (5 + 4y)) = 0
((5 * -1 + 4y * -1) + 3y * (5 + 4y)) = 0
((-5 + -4y) + 3y * (5 + 4y)) = 0
(-5 + -4y + (5 * 3y + 4y * 3y)) = 0
(-5 + -4y + (15y + 12y2)) = 0

Combine like terms: -4y + 15y = 11y
(-5 + 11y + 12y2) = 0

Solving
-5 + 11y + 12y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-5 + -4y)(1 + -3y) = 0

Subproblem 1
Set the factor '(-5 + -4y)' equal to zero and attempt to solve:

Simplifying
-5 + -4y = 0

Solving
-5 + -4y = 0

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

Add '5' to each side of the equation.
-5 + 5 + -4y = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -4y = 0 + 5
-4y = 0 + 5

Combine like terms: 0 + 5 = 5
-4y = 5

Divide each side by '-4'.
y = -1.25

Simplifying
y = -1.25
Subproblem 2
Set the factor '(1 + -3y)' equal to zero and attempt to solve:

Simplifying
1 + -3y = 0

Solving
1 + -3y = 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 + -3y = 0 + -1

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

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

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

Simplifying
y = 0.3333333333
Solution
y = {-1.25, 0.3333333333}