Lê Quốc Trần Anh Coordinator
09/06/2018 at 04:36-
Alone 13/06/2018 at 10:16With x=2 then \(4P\left(2\right)=5.2^2=20\Rightarrow P\left(2\right)=5\)
With x=3 then \(P\left(3\right)+3P\left(2\right)=5.3^2=45\Rightarrow P\left(3\right)=45-5.3=30\)
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