81u^4-1=

Solution for 81u^4-1= equation:

Simplifying
81u4 + -1 = 0

Reorder the terms:
-1 + 81u4 = 0

Solving
-1 + 81u4 = 0

Solving for variable 'u'.

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

Add '1' to each side of the equation.
-1 + 1 + 81u4 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 81u4 = 0 + 1
81u4 = 0 + 1

Combine like terms: 0 + 1 = 1
81u4 = 1

Divide each side by '81'.
u4 = 0.01234567901

Simplifying
u4 = 0.01234567901

Reorder the terms:
-0.01234567901 + u4 = 0.01234567901 + -0.01234567901

Combine like terms: 0.01234567901 + -0.01234567901 = 0.00000000000
-0.01234567901 + u4 = 0.00000000000

The solution to this equation could not be determined.