Answer:

Step-by-step explanation:


Answer:
8b + 7
Step-by-step explanation:
Add like terms.
7b + b (same as 1b) = 8b
4 + 3 = 7
To simplify this expression, you have to remember that when
a number or a variable is raised to the negative exponent you have to
reciprocate the number. In this expression, c^-8 will be reciprocated so it
will become part of the numerator. Therefore, the final answer would be
12c^8/d^2.