A to the power 3 whole bracket to the power minus 4 divide by a to the power minus 5 multiply with a to the power minus 3
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(a3)^-4/{ a ^-5 × (a ^-3) }
a ^-12 /a ^-15
a^-12+15
a^3
a ^-12 /a ^-15
a^-12+15
a^3
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