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Simplifying
4(90x2) = 0
Remove parenthesis around (90x2)
4 * 90x2 = 0
Multiply 4 * 90
360x2 = 0
Solving
360x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '360'.
x2 = 0.0
Simplifying
x2 = 0.0
Take the square root of each side:
x = {0.0}
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