Simplify each expression below as much as possible. Record your work in the same way you did in problem A-51.
Flip subtraction to addition.
Remove zero pairs.
Remember to remove unnecessary signs (Example:
would be ).
Follow the steps described in part (a).
Remember a negative multiplied by a negative is a positive.
Remember you cannot add variables with different exponent values. (Example: you cannot add
Follow the steps explained inpart (a) and remember the hints in part (b)