(2x)(3.75x)=800

Solution for (2x)(3.75x)=800 equation:

Simplifying
(2x)(3.75x) = 800

Remove parenthesis around (2x)
2x(3.75x) = 800

Remove parenthesis around (3.75x)
2x * 3.75x = 800

Reorder the terms for easier multiplication:
2 * 3.75x * x = 800

Multiply 2 * 3.75
7.5x * x = 800

Multiply x * x
7.5x2 = 800

Solving
7.5x2 = 800

Solving for variable 'x'.

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

Divide each side by '7.5'.
x2 = 106.6666667

Simplifying
x2 = 106.6666667

Take the square root of each side:
x = {-10.327955592, 10.327955592}