Answer:

Step-by-step explanation:
The quadratic formula states that the solutions for a quadratic is standard form
are equal to
.
In
, we can assign the values:
Thus, we have:

2(2)+4(-1)=4+-4=0, so your answer is 0 hope this helps
I think the answer maybe will be 3)5 and the reason why Is because
$1.98 divided by 2 is $0.99
So the sale price is $0.99
True, all of them represent a negative number, for example:
You have $60 and you spent $10, the remaining money is:

Your savings are $1000 and you make a Withdrawal of $500:

In other words for calculation purposes, they all have negative values