2(4b^2)-5=

Solution for 2(4b^2)-5= equation:

Simplifying
2(4b2) + -5 = 0

Remove parenthesis around (4b2)
2 * 4b2 + -5 = 0

Multiply 2 * 4
8b2 + -5 = 0

Reorder the terms:
-5 + 8b2 = 0

Solving
-5 + 8b2 = 0

Solving for variable 'b'.

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

Add '5' to each side of the equation.
-5 + 5 + 8b2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 8b2 = 0 + 5
8b2 = 0 + 5

Combine like terms: 0 + 5 = 5
8b2 = 5

Divide each side by '8'.
b2 = 0.625

Simplifying
b2 = 0.625

Take the square root of each side:
b = {-0.790569415, 0.790569415}