Question 357897
Use polynomial long division.
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<pre>

          5b^2 + (-2b) +   7
        __________________________
6b + 3 | 30b^3 +  3b^2 +  36b + 30
      - (30b^3 + 15b^2)
       ---------------
                -12b^2 +  36b
             - (-12b^2 + (-6b))
                --------------
                          42b + 30
                      -  (42b + 21)
                          --------
                                 9
</pre>
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{{{(30b^3 + 3b^2 + 36b +30) / (6b + 3)=(5b^2-2b+7)+9/(6b+3)}}}