4(9b^2)-1=

Solution for 4(9b^2)-1= equation:

Simplifying
4(9b2) + -1 = 0

Remove parenthesis around (9b2)
4 * 9b2 + -1 = 0

Multiply 4 * 9
36b2 + -1 = 0

Reorder the terms:
-1 + 36b2 = 0

Solving
-1 + 36b2 = 0

Solving for variable 'b'.

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

Add '1' to each side of the equation.
-1 + 1 + 36b2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 36b2 = 0 + 1
36b2 = 0 + 1

Combine like terms: 0 + 1 = 1
36b2 = 1

Divide each side by '36'.
b2 = 0.02777777778

Simplifying
b2 = 0.02777777778

Take the square root of each side:
b = {-0.166666667, 0.166666667}