(3-z)(5z-2)=0

Solution for (3-z)(5z-2)=0 equation:

Simplifying
(3 + -1z)(5z + -2) = 0

Reorder the terms:
(3 + -1z)(-2 + 5z) = 0

Multiply (3 + -1z) * (-2 + 5z)
(3(-2 + 5z) + -1z * (-2 + 5z)) = 0
((-2 * 3 + 5z * 3) + -1z * (-2 + 5z)) = 0
((-6 + 15z) + -1z * (-2 + 5z)) = 0
(-6 + 15z + (-2 * -1z + 5z * -1z)) = 0
(-6 + 15z + (2z + -5z2)) = 0

Combine like terms: 15z + 2z = 17z
(-6 + 17z + -5z2) = 0

Solving
-6 + 17z + -5z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-3 + z)(2 + -5z) = 0

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

Simplifying
-3 + z = 0

Solving
-3 + z = 0

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

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

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

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

Simplifying
z = 3
Subproblem 2
Set the factor '(2 + -5z)' equal to zero and attempt to solve:

Simplifying
2 + -5z = 0

Solving
2 + -5z = 0

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

Add '-2' to each side of the equation.
2 + -2 + -5z = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -5z = 0 + -2
-5z = 0 + -2

Combine like terms: 0 + -2 = -2
-5z = -2

Divide each side by '-5'.
z = 0.4

Simplifying
z = 0.4
Solution
z = {3, 0.4}