Question

Am nevoie de raspuns in 10 MINUTE.

18 la puterea x+2 impartit la 2 la puterea a 5=3 la puterea a 10

X=???

Answer 1

18^(x+2)  : 2^5 = 3^10
18^(x+2)          = 3^10*2^5
18=9*2=3^2*2
3^2*2 ^(x+2)=3^10*2^5
3^2*(x+2)*2^(x+2)=3^10*2^5
2*(x+2)=10---->x+2=5--->x=3