what is the value of the expression 6^-7×6^4
6⁻⁷ x 6⁴= 1/(6⁷) x 6⁴= 1/(6x6x6x6x6x6x6) x (6x6x6x6)= 1/(6x6x6)= 1/(6³)= 1/216
6^-7 × 6^4= 6^-3= 1/6^3= 1/216