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Simplifying
1x(0.2) * x(0.8) * 5 = 0
Reorder the terms for easier multiplication:
1 * 0.2 * 0.8 * 5x * x = 0
Multiply 1 * 0.2
0.2 * 0.8 * 5x * x = 0
Multiply 0.2 * 0.8
0.16 * 5x * x = 0
Multiply 0.16 * 5
0.8x * x = 0
Multiply x * x
0.8x2 = 0
Solving
0.8x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '0.8'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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