40b^2-160=0

Solution for 40b^2-160=0 equation:

Simplifying
40b2 + -160 = 0

Reorder the terms:
-160 + 40b2 = 0

Solving
-160 + 40b2 = 0

Solving for variable 'b'.

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

Add '160' to each side of the equation.
-160 + 160 + 40b2 = 0 + 160

Combine like terms: -160 + 160 = 0
0 + 40b2 = 0 + 160
40b2 = 0 + 160

Combine like terms: 0 + 160 = 160
40b2 = 160

Divide each side by '40'.
b2 = 4

Simplifying
b2 = 4

Take the square root of each side:
b = {-2, 2}