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How do you write the mixed expression #p-7/(2p)# as a rational expression?

Answer 1

Nathan Axel

#(2p^2-7)/(2p)#

To do this, we need to put #p# inside the other fraction. We can do this like this:

#p = p * (2p)/(2p) = (2p^2)/(2p)#

Now, we can rewrite our expression as:

#p-7/(2p) = (2p^2)/(2p) - 7/(2p) = (2p^2-7)/(2p)#

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Answer 2

Jameson Allen

The mixed expression p-7/(2p) can be written as the rational expression (2p^2 - 7)/(2p).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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