The subtraction sign in front of the second set of parenthesis changes the signs on the terms inside those parenthesis. So this could be rewritten as

. None of the exponents on the x are the same, so we will just express it in terms of descending powers of x.

. This is also the same as

if you don't like to start with a negative. Either one is correct.
Answer:
A
Step-by-step explanation:
1. 8 / ½ or 8 * 2
2. You get 16
Answer:
He drove 63 miles in one day
Step-by-step explanation:
151.2/2.4=63
First work out the difference:
75-40 = 30
30/75 * 100 = 40% decrease.
Please mark as brainliest