N^2.....because this is the product of n and itself, not the sum
Answer:
<em>4 pounds of ingredients are used in each batch.</em>
Step-by-step explanation:
Amount of flour = 
Amount of butter = 8 pounds
Amount of sugar = 
So, the <u>total amount of all ingredients</u> will be: 
Given that, she makes 12 batches of cookies using all the ingredients.
Thus, the amount of ingredients used in each batch 
I also think its 4 but im not sure
Let the number be x.
then the number is (x + 6)
the difference between their squares is 192
(x + 6)² - x² = 192
expanding we get;
x² + 12x + 36 - x² = 192
12x + 36 = 192
12x = 192 - 36
12x = 156
x = 13
the numbers are 13 and 19.
hope this helps, God bless!