7x(-9)(-5x)=4

Solution for 7x(-9)(-5x)=4 equation:

Simplifying
7x(-9)(-5x) = 4

Remove parenthesis around (-5x)
7x * -9 * -5x = 4

Reorder the terms for easier multiplication:
7 * -9 * -5x * x = 4

Multiply 7 * -9
-63 * -5x * x = 4

Multiply -63 * -5
315x * x = 4

Multiply x * x
315x2 = 4

Solving
315x2 = 4

Solving for variable 'x'.

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

Divide each side by '315'.
x2 = 0.0126984127

Simplifying
x2 = 0.0126984127

Take the square root of each side:
x = {-0.112687234, 0.112687234}