Answer:
n²-7n-21
Explanation:
Given the expression:

First, open the brackets:

Next, bring the like terms together and simplify:

Answer:
ok whatchu need help with
Step-by-step explanation:
Answer:
The square root of -100 is 10i
Step-by-step explanation:
<h2>2 units down</h2><h2>1 unit to the left</h2>