50.4=x*(1.5*x)

Solution for 50.4=x*(1.5*x) equation:

Simplifying
50.4 = x(1.5x)

Remove parenthesis around (1.5x)
50.4 = x * 1.5x

Reorder the terms for easier multiplication:
50.4 = 1.5x * x

Multiply x * x
50.4 = 1.5x2

Solving
50.4 = 1.5x2

Solving for variable 'x'.

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

Add '-1.5x2' to each side of the equation.
50.4 + -1.5x2 = 1.5x2 + -1.5x2

Combine like terms: 1.5x2 + -1.5x2 = 0.0
50.4 + -1.5x2 = 0.0

Add '-50.4' to each side of the equation.
50.4 + -50.4 + -1.5x2 = 0.0 + -50.4

Combine like terms: 50.4 + -50.4 = 0.0
0.0 + -1.5x2 = 0.0 + -50.4
-1.5x2 = 0.0 + -50.4

Combine like terms: 0.0 + -50.4 = -50.4
-1.5x2 = -50.4

Divide each side by '-1.5'.
x2 = 33.6

Simplifying
x2 = 33.6

Take the square root of each side:
x = {-5.796550698, 5.796550698}