80x^2-2x-1=0

Solution for 80x^2-2x-1=0 equation:

Simplifying
80x2 + -2x + -1 = 0

Reorder the terms:
-1 + -2x + 80x2 = 0

Solving
-1 + -2x + 80x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -10x)(1 + -8x) = 0

Subproblem 1
Set the factor '(-1 + -10x)' equal to zero and attempt to solve:

Simplifying
-1 + -10x = 0

Solving
-1 + -10x = 0

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

Add '1' to each side of the equation.
-1 + 1 + -10x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -10x = 0 + 1
-10x = 0 + 1

Combine like terms: 0 + 1 = 1
-10x = 1

Divide each side by '-10'.
x = -0.1

Simplifying
x = -0.1
Subproblem 2
Set the factor '(1 + -8x)' equal to zero and attempt to solve:

Simplifying
1 + -8x = 0

Solving
1 + -8x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -8x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -8x = 0 + -1
-8x = 0 + -1

Combine like terms: 0 + -1 = -1
-8x = -1

Divide each side by '-8'.
x = 0.125

Simplifying
x = 0.125
Solution
x = {-0.1, 0.125}