0.02=(x*4)*x

Solution for 0.02=(x*4)*x equation:

Simplifying
0.02 = (x * 4) * x

Reorder the terms for easier multiplication:
0.02 = (4x) * x

Remove parenthesis around (4x)
0.02 = 4x * x

Multiply x * x
0.02 = 4x2

Solving
0.02 = 4x2

Solving for variable 'x'.

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

Add '-4x2' to each side of the equation.
0.02 + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
0.02 + -4x2 = 0

Add '-0.02' to each side of the equation.
0.02 + -0.02 + -4x2 = 0 + -0.02

Combine like terms: 0.02 + -0.02 = 0.00
0.00 + -4x2 = 0 + -0.02
-4x2 = 0 + -0.02

Combine like terms: 0 + -0.02 = -0.02
-4x2 = -0.02

Divide each side by '-4'.
x2 = 0.005

Simplifying
x2 = 0.005

Take the square root of each side:
x = {-0.070710678, 0.070710678}