Answer
8
Work Step by Step
You have to determine the x value in $3^{2}$+$3^{x}$=$3^{10}$.Solve:
$3^{2+x}$=$3^{10}$ -in order to multiply powers with the same base add the exponents-
2+x=10 -subtract 2 from both sides-
x=8
The x value is 8 so $3^{2}$+$3^{8}$=$3^{10}$.
