-9n^2+4=0

Solution for -9n^2+4=0 equation:

Simplifying
-9n2 + 4 = 0

Reorder the terms:
4 + -9n2 = 0

Solving
4 + -9n2 = 0

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + -9n2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -9n2 = 0 + -4
-9n2 = 0 + -4

Combine like terms: 0 + -4 = -4
-9n2 = -4

Divide each side by '-9'.
n2 = 0.4444444444

Simplifying
n2 = 0.4444444444

Take the square root of each side:
n = {-0.666666667, 0.666666667}