To simplify the problem it would be: -18xy+18y^2
He will have $13.5
Explanation:
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Answer:
you could fence each side with 40 feet if fence if the side with the barn does not need fencing
f(x)=(x+4) ^2 −25
to solve set equal to zero
0 =(x+4) ^2 −25
add 25 to each side
25 = (x+4) ^2
take the square root of each side
square root (25) =(x+4)
+- 5 = (x+4)
5 = x+4 -5 = x+4
subtract 4 from each side
1 =x -9 =x
