You have to add all the common terms together.
Because + and - make - which makes you left with 3-5 which equals to -2 because it gets negative.
The answer is -7 :) hope this helps
Answer:
144.78 cm
Step-by-step explanation:
57 times 2.54
4 · x^4 · x^4 · y
4 x^8 y
In words: four times x to the eighth times y