Answer:
The answer is the first one, A
Step-by-step explanation:
I believe so yes this is correct I think
73,980=70,000+3,000+800+90+0
100=100+00+0
-14a-5=-12
+5 +5
-14a=-7
Divide -7 by -14a
a=2
Answer: 8n
Let's simplify step-by-step.
(2(n+1)−1)2−(2n−1)2
Distribute:
=4n2+4n+1+−4n2+4n+−1
Combine Like Terms:
=4n2+4n+1+−4n2+4n+−1
=(4n2+−4n2)+(4n+4n)+(1+−1)
=8n