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D( x )
x+349 = 0
x+349 = 0
x+349 = 0
x+349 = 0 // - 349
x = -349
x in (-oo:-349) U (-349:+oo)
14.658/(x+349) = 0.036 // - 0.036
14.658/(x+349)-0.036 = 0
14.658/(x+349)+(-0.036*(x+349))/(x+349) = 0
14.658-0.036*(x+349) = 0
2.094-0.036*x = 0
(2.094-0.036*x)/(x+349) = 0
(2.094-0.036*x)/(x+349) = 0 // * x+349
2.094-0.036*x = 0
2.094-0.036*x = 0 // - 2.094
-0.036*x = -2.094 // : -0.036
x = -2.094/(-0.036)
x = 58.16666667
x = 58.16666667
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