nilai x yang memenuhi 3pangkat x+2=81akar 3 adalah

[tex] 3^{x + 2} = 81\sqrt{3} \\ 3^{x + 2} = 3^{4} * 3^{ \frac{1}{2} } \\ 3^{x + 2} = 3^{ \frac{9}{2} } \\ x + 2 = \frac{9}{2} \\ x = \frac{5}{2} [/tex]Ketikkan jawabanmu di sini

[tex]3^{x+2}\:=81\sqrt{3}\: \\ \\ 3^{x+2}\:=3^4.3^{ \frac{1}{2} }}\: \\ \\ 3^{x+2}\:=3^{4 \frac{1}{2} }}\: \\ \\ x+2= 4\frac{1}{2 } \\ \\ x =4\frac{1}{2 }-2=2\frac{1}{2 } [/tex]