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Simplifying
x(x * 0.4) = 64898.97
Reorder the terms for easier multiplication:
x(0.4x) = 64898.97
Remove parenthesis around (0.4x)
x * 0.4x = 64898.97
Reorder the terms for easier multiplication:
0.4x * x = 64898.97
Multiply x * x
0.4x2 = 64898.97
Solving
0.4x2 = 64898.97
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '0.4'.
x2 = 162247.425
Simplifying
x2 = 162247.425
Take the square root of each side:
x = {-402.799484856, 402.799484856}
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