I’m pretty sure it’s D??? But it also could be B I’m sorry :( trying to help as much as possible
Answer:
d=1
Step-by-step explanation:
If you expand the square, you have

Simplify the right hand side:

Cancel the -3x appearing on both sides:

Multiply both sides by 4:

Consider the square root of both terms (using the doubles sign):


The answer is above.
Additional note 1:

Additional note 2:
In the answer I filled in "0" at the place where "n" was. This is because the question tells us n=0
Answer:
as a fraction it could be 3/5
Step-by-step explanation:
but as a decimal it would be 0.6