16s^2-21=0

Solution for 16s^2-21=0 equation:

Simplifying
16s2 + -21 = 0

Reorder the terms:
-21 + 16s2 = 0

Solving
-21 + 16s2 = 0

Solving for variable 's'.

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

Add '21' to each side of the equation.
-21 + 21 + 16s2 = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 16s2 = 0 + 21
16s2 = 0 + 21

Combine like terms: 0 + 21 = 21
16s2 = 21

Divide each side by '16'.
s2 = 1.3125

Simplifying
s2 = 1.3125

Take the square root of each side:
s = {-1.145643924, 1.145643924}