(2.5x)(3x)=30

Solution for (2.5x)(3x)=30 equation:

Simplifying
(2.5x)(3x) = 30

Remove parenthesis around (2.5x)
2.5x(3x) = 30

Remove parenthesis around (3x)
2.5x * 3x = 30

Reorder the terms for easier multiplication:
2.5 * 3x * x = 30

Multiply 2.5 * 3
7.5x * x = 30

Multiply x * x
7.5x2 = 30

Solving
7.5x2 = 30

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 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}