a) 9² . $3^{4}$ , 3
= (3²)² . ($3^{4}$ ) $^{1}$
= $3^{4}$ . $3^{5}$
=($3^{4}$ )$^{5}$
=$3^{9}$
b) $4^{2}$ . 2 . $2^{10}$
= ($2^{2}$ )$^{2}$ . ($2^{10}$)$^{1}$
=$2^{4}$ . $2^{11}$
= ($2^{4}$ )$^{11}$
= $2^{15}$
c) $5^{1}$ . $125^{0}$ . $125^{1}$
= 5 . 1 . 125
= 5 . 125
= 5 . $5^{3}$
= ($5^{1}$) $^{3}$
= $5^{4}$