400+100=b(b)

Solution for 400+100=b(b) equation:

Simplifying
400 + 100 = b(b)

Combine like terms: 400 + 100 = 500
500 = b(b)

Multiply b * b
500 = b2

Solving
500 = b2

Solving for variable 'b'.

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

Add '-1b2' to each side of the equation.
500 + -1b2 = b2 + -1b2

Combine like terms: b2 + -1b2 = 0
500 + -1b2 = 0

Add '-500' to each side of the equation.
500 + -500 + -1b2 = 0 + -500

Combine like terms: 500 + -500 = 0
0 + -1b2 = 0 + -500
-1b2 = 0 + -500

Combine like terms: 0 + -500 = -500
-1b2 = -500

Divide each side by '-1'.
b2 = 500

Simplifying
b2 = 500

Take the square root of each side:
b = {-22.360679775, 22.360679775}