Answer:
The anwser would be 230
Step-by-step explanation:
X = 3 and x = -1 are the answers for both. They are exactly the same equation.
FOR COMPLETING THE SQUARE
Make in terms of ()^2 which you can do by adding numbers to both sides. Eventually it will look like this:
(2x - 1)^2 - 7 = 0
Add to both sides, take a square root and then solve.
USE THE QUADRATIC FORMULA
Be sure to solve for zero and be aware of negatives when plugging in.
Answer:
or 
Step-by-step explanation:
d=5m+11n
-11n=5m-d
11n=-5m+d

It won't be wrong if you also put 
2.5 ounces = 0.15625 pounds