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Dragomiroana260
a fost răspuns

E(x)=x+1/x+2
Rezolvati ecuatia: 4E(x)=3.

Răspuns :

CarMina03
4E(x)=3
4*(x+1/x+2)=3  conditia x+2≠0⇒x≠-2
4*(x+1)=3*(x+2)
4x+4=3x+6
4x-3x=6-4
x=2
E(x) = x+1/x+2
4E(x)=3
E(x)=(x+1):(x+2)
E(x)=x+1/1·1/x+2
E(x)=1/2
4E(x)=3
4(x+1/x+2)=3
4x+4=3x+6
4x-3x=6-4
x=2


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