Question: simplifying rational exponents? how do you simplify...\n( (a^-12 * b^-4)^1/2 ) / ( a^4 * c^-8 )^1/2

Answer: [(a^-12*b^-4)^1/2]/ [a^4*c^-8)^1/2]\n=[a^(-12*1/2 *b^(-4*1/2]/ a^(4*1/2*c^(-8*1/2(]\n=[a^-6*b-2]/[a^2*c^-4]\n=[a^-6*b^-2]Xa^-2*c^4]\n=a^(-6-2)*b^(-2)*c^4\n=a^-8*b^-2*c^4.This can also be written as  c^4/(a^8*b^2)
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