Question

(5la puterea 7+5la puterea 8+ 5 lla puterea 9 ):5 la puterea 6

Answer 1

( 5⁷ + 5⁸ + 5⁹ ) : 5⁶ = 5⁷⁻⁶ + 5⁸⁻⁶ + 5⁹⁻⁶ = 5¹ + 5² + 5³ = 5+25+125 = 155 ;