Answer:
30
Step-by-step explanation:
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
95/100 = 0.95 <== if she missed 5 out of 95, then she got 95 out of 100
X=7
after you remove parentheses you do those steps