Rational Expression
Before you multiply you want factor and cancel like terms.
So (x + 7) and (x + 4) can be cancelled because there is one in a numerator and
one in a denominator. Also 7 and 14 can be reduced because you can divide 7 by 7 and 14 by 7.
This is the final answer. If you want you can change the denominator by multiplying by 2 so the
denominator changes to 6x + 4 but this is not necessary.
Try these problem:

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