Indices, SMB-020 Express `4a^(-5) -: 12a^4` as a fraction involving non-negative indices only. (1 mark) --- 2 WORK AREA LINES (style=lined) --- Show Answers Only `1/(3a^9)` Show Worked Solution `4a^(-5) -: 12a^4` `=(4a^(-5))/(12a^4)` `= a^((-5-4))/3` `= (a^(-9))/3` `=1/(3a^9)`