Question 1017156
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I need help.  

simplify. do not evaluate exponential numbers.

a) (3^-2/4^3)^-1 * (3/4)

b) 3^-1*2^2*3^3 / 2^2*3^2 + (3/2)^0

c) (7^4*6^3*7^-5/7^-3*6^0)^2 / (6^5*7^-2/6^-4)^3
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Responding to c), the SEEMINGLY most complex of the 3.

c) {{{(7^4*6^3*7^-5/(7^(- 3)*6^0))^2 / (6^5*7^-2/6^(- 4))^3}}} = {{{(7^(4 + - 5)*6^3/(7^(- 3)*1))^2 / (6^5*7^-2/6^(- 4))^3}}} = {{{(7^(- 1)*6^3/7^(- 3))^2/(6^5*7^-2/6^(- 4))^3}}} = {{{(7^(- 1 - - 3) * 6^3)^2/(6^(5 - - 4) * 7^(- 2))^3}}} = {{{(7^(- 1 + 3) * 6^3)^2/( 6^(5 + 4) * 7^(- 2))^3}}}
       {{{(7^2 * 6^3)^2/(6^9 * 7^(- 2))^3}}} = {{{(7^4 * 6^6)/(6^27 * 7^(- 6))}}} = {{{7^(4 - - 6) * 6^(6 - 27)}}} = {{{7^(4 + 6)*6^(- 21)}}} = {{{highlight(7^10*6^(- 21))}}}, or {{{highlight(7^10/6^21)}}}</font></font></font></b></pre>