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Step-by-step explanation:

When you have exponents above a like term and they are being multiplied together, you add them.

For example:

So let's group like terms in the numerator:

  We can add terms like in the example.

Let's rearrange the denominator.

Now we have:

 Cancel like terms

4/8 = 1/2    

= 1  So it cancels

= s Since s is raised to the -1 it goes on top and becomes s.

Now we combine everything back together:

ipuy6tygy

step-by-step explanation:

bull

step-by-step explanation: