Answer:
Step-by-step explanation:
The final answer is n^2+ 2r -2n+ 7~
Answer:
x=0,1,-1
Step-by-step explanation:
It factors as
X(x+1)(x-1)=0
Answer:
2/21
Step-by-step explanation:
2/21 is the answer...........that is the fraction......
x+1/3=3/7
x=3/7-1/3
LCM=21
x=9/21-7/21
x=2/21
Answer: 
Step-by-step explanation:

a = base
h = height

Solve the parentheses squared first.

2 and 36 can be simplied
2/2=1
36/2=18


Rounded to the nearest whole number... 
Here is your answer mate✌️