(-6z^2+5z+4)=0

Solution for (-6z^2+5z+4)=0 equation:

Simplifying
(-6z2 + 5z + 4) = 0

Reorder the terms:
(4 + 5z + -6z2) = 0

Remove parenthesis around (4 + 5z + -6z2)
4 + 5z + -6z2 = 0

Solving
4 + 5z + -6z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(4 + -3z)(1 + 2z) = 0

Subproblem 1
Set the factor '(4 + -3z)' equal to zero and attempt to solve:

Simplifying
4 + -3z = 0

Solving
4 + -3z = 0

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

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

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

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

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

Simplifying
z = 1.333333333
Subproblem 2
Set the factor '(1 + 2z)' equal to zero and attempt to solve:

Simplifying
1 + 2z = 0

Solving
1 + 2z = 0

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

Add '-1' to each side of the equation.
1 + -1 + 2z = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2z = 0 + -1
2z = 0 + -1

Combine like terms: 0 + -1 = -1
2z = -1

Divide each side by '2'.
z = -0.5

Simplifying
z = -0.5
Solution
z = {1.333333333, -0.5}