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Simplifying
(0.3x)(0.4x) = 0
Remove parenthesis around (0.3x)
0.3x(0.4x) = 0
Remove parenthesis around (0.4x)
0.3x * 0.4x = 0
Reorder the terms for easier multiplication:
0.3 * 0.4x * x = 0
Multiply 0.3 * 0.4
0.12x * x = 0
Multiply x * x
0.12x2 = 0
Solving
0.12x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '0.12'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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