Question 992785
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1. What's the prime factorization of 68 is?  68 = {{{2^2}}}*{{{17}}}.


2. The prime factorization of 90 is          90 = {{{2}}}.{{{3^3}}}.{{{5}}}. 


3. 8x÷52                                     {{{(8x)/52}}} = {{{(2x)/13}}}.


4. 28x÷70x                                   {{{(28x)/(70x)}}} = {{{(2)/5}}}.


5. 12x2÷28x                                  {{{(12x^2)/(28x)}}} = {{{(3x)/7}}}. 
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