Answer with positive exponent = or
Answer with negative exponent =
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Explanation:
The rule we use is
If we multiply two exponential expressions with the same base, then we add the exponents.
The base for each is 5. The exponents 4 and -7 add to -3.
This means
To convert to a positive exponent, we apply the reciprocal to the base. We go from 5, aka 5/1, to 1/5.
So,
Answer:
Option C
Step-by-step explanation:
<u><em>Verify each expression</em></u>
case A) we have
In this expression the term of n is 6n
so
has a coefficient of positive 6
case B) we have
In this expression the term of n is -5n
so
has a coefficient of negative 5
case C) we have
In this expression the term of n is n
so
has a coefficient of positive 1
case D) we have
In this expression the term of n is -n
so
has a coefficient of negative 1