Question

Calculati:
(5⁷+5⁸+5⁹):5⁶

Answer 1

(5⁷+5⁸+5⁹):5⁶=
=5⁷(1+5+25):5⁶
=5⁷⁻⁶×31
=5×31
=155

Answer 2

$( {5}^{7} + {5}^{8} + {5}^{9} ) \div {5}^{6} = {5}^{7} \div {5}^{6} + {5}^{8} \div {5}^{6} + {5}^{9} \div {5}^{6} = {5}^{7 - 6} + {5}^{8 - 6} + {5}^{9 - 6} = {5}^{1} + {5}^{2} + {5}^{3} = 5 + 25 + 125 = 155$