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(-9/2)*e^(-6*x)*(6*x-1) = 0
(-9/2)*e^(-6*x) = 0
-9/2 = 0
-9/2 = 0 // * 2
-9 = 0
e^(-6*x) = 0
x należy do O
(-9/2)*e^(-6*x) = 0 <=> -9/2 = 0 or (-9/2)*e^(-6*x) = 0 <=> e^(-6*x) = 0
6*x-1 = 0
6*x-1 = 0 // + 1
6*x = 1 // : 6
x = 1/6
(-9/2)*e^(-6*x)*(6*x-1) = 0 <=> (-9/2)*e^(-6*x) = 0 or (-9/2)*e^(-6*x)*(6*x-1) = 0 <=> 6*x-1 = 0
x = 1/6
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