5e^2-18e-8=0

Solution for 5e^2-18e-8=0 equation:

Simplifying
5e2 + -18e + -8 = 0

Reorder the terms:
-8 + -18e + 5e2 = 0

Solving
-8 + -18e + 5e2 = 0

Solving for variable 'e'.

Factor a trinomial.
(-2 + -5e)(4 + -1e) = 0

Subproblem 1
Set the factor '(-2 + -5e)' equal to zero and attempt to solve:

Simplifying
-2 + -5e = 0

Solving
-2 + -5e = 0

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

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

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

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

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

Simplifying
e = -0.4
Subproblem 2
Set the factor '(4 + -1e)' equal to zero and attempt to solve:

Simplifying
4 + -1e = 0

Solving
4 + -1e = 0

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

Add '-4' to each side of the equation.
4 + -4 + -1e = 0 + -4

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

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

Divide each side by '-1'.
e = 4

Simplifying
e = 4
Solution
e = {-0.4, 4}