30(b)(b)-400=19

Solution for 30(b)(b)-400=19 equation:

Simplifying
30(b)(b) + -400 = 19

Multiply b * b
30b2 + -400 = 19

Reorder the terms:
-400 + 30b2 = 19

Solving
-400 + 30b2 = 19

Solving for variable 'b'.

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

Add '400' to each side of the equation.
-400 + 400 + 30b2 = 19 + 400

Combine like terms: -400 + 400 = 0
0 + 30b2 = 19 + 400
30b2 = 19 + 400

Combine like terms: 19 + 400 = 419
30b2 = 419

Divide each side by '30'.
b2 = 13.96666667

Simplifying
b2 = 13.96666667

Take the square root of each side:
b = {-3.737200379, 3.737200379}