Question

find the value of x if (5/6)^7×(5/6)^-9=(5/6)^2x

Answer 1

5/6^7 x 5/6^-9 = 5/6^2x

when bases are same,and there is multiplication,we add the powers

(5/6)^7-9 = 5/6^2x

when bases r same,we equate powers

-2=2x

x=-1

hope this will help u......