2z*2z-5z+1=0

Solution for 2z*2z-5z+1=0 equation:

Simplifying
2z * 2z + -5z + 1 = 0

Reorder the terms for easier multiplication:
2 * 2z * z + -5z + 1 = 0

Multiply 2 * 2
4z * z + -5z + 1 = 0

Multiply z * z
4z2 + -5z + 1 = 0

Reorder the terms:
1 + -5z + 4z2 = 0

Solving
1 + -5z + 4z2 = 0

Solving for variable 'z'.

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

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

Simplifying
1 + -4z = 0

Solving
1 + -4z = 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 + -4z = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -4z = 0 + -1
-4z = 0 + -1

Combine like terms: 0 + -1 = -1
-4z = -1

Divide each side by '-4'.
z = 0.25

Simplifying
z = 0.25
Subproblem 2
Set the factor '(1 + -1z)' equal to zero and attempt to solve:

Simplifying
1 + -1z = 0

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

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

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

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

Simplifying
z = 1
Solution
z = {0.25, 1}