21n^2-10=0

Solution for 21n^2-10=0 equation:

Simplifying
21n2 + -10 = 0

Reorder the terms:
-10 + 21n2 = 0

Solving
-10 + 21n2 = 0

Solving for variable 'n'.

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

Add '10' to each side of the equation.
-10 + 10 + 21n2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 21n2 = 0 + 10
21n2 = 0 + 10

Combine like terms: 0 + 10 = 10
21n2 = 10

Divide each side by '21'.
n2 = 0.4761904762

Simplifying
n2 = 0.4761904762

Take the square root of each side:
n = {-0.690065559, 0.690065559}