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

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

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

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

Multiply (2 + -1z) * (3 + 5z)
(2(3 + 5z) + -1z * (3 + 5z)) = 0
((3 * 2 + 5z * 2) + -1z * (3 + 5z)) = 0
((6 + 10z) + -1z * (3 + 5z)) = 0
(6 + 10z + (3 * -1z + 5z * -1z)) = 0
(6 + 10z + (-3z + -5z2)) = 0

Combine like terms: 10z + -3z = 7z
(6 + 7z + -5z2) = 0

Solving
6 + 7z + -5z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(2 + -1z)(3 + 5z) = 0

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

Simplifying
2 + -1z = 0

Solving
2 + -1z = 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 + -1z = 0 + -2

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

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

Divide each side by '-1'.
z = 2

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

Simplifying
3 + 5z = 0

Solving
3 + 5z = 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 + 5z = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 5z = 0 + -3
5z = 0 + -3

Combine like terms: 0 + -3 = -3
5z = -3

Divide each side by '5'.
z = -0.6

Simplifying
z = -0.6
Solution
z = {2, -0.6}