Yo has to factor since we assume that
if you have xy=0, x and y=0
7n^2-48n+36=0
trial and error
(7n-6)(n-6)=0
set each to zero
7n-6=0
add 6
7n=6
divide 7
n=6/7
n-6=0
add 6
n=6
n=6/7 or 6
It is twice the area of a square of side lengths 3 units
For the each of them simply substitute for x in each equation to see if you get the corresponding y , it doesnt really get any more straightforward than this
Answer:
-790
Step-by-step explanation:
It is 4 because 3 times 4 equals 12
