Question

(3 la 9:3 la 6+2 la 4:2):7

Answer 1

(3^9:3^6+2^4:2):7=
=(3^3+2^3):7=
=(27+8):7=
=35:7=5

Answer 2

$( {3}^{9} \div {3}^{6} + {2}^{4} \div 2) \div 7$

$= ( {3}^{9 - 6} + {2}^{4 - 1} ) \div 7$

$= ( {3}^{3} + {2}^{3} ) \div 7$

$= ( 27 + 8) \div 7$

$= 35 \div 7$

$= 5$