Asked by Albert
If I have a garden that is square with sides of length x feet and next spring I plan to make it rectangular by lengthening one side 3 feet and shortening the other side by 3 feet.
Find a polynomial A(x) that represents the new area.
By how much will the area of the new garden differ from that of the old garden?
Find a polynomial A(x) that represents the new area.
By how much will the area of the new garden differ from that of the old garden?
Answers
Answered by
Reiny
Old garden : x by x or x^2
new garden :(x-3) by (x+3)
A(x) = (x+3)(x-3) or x^2 - 9
difference = old garden - new garden
= x^2 - (x^2 - 9)
= 9
new garden :(x-3) by (x+3)
A(x) = (x+3)(x-3) or x^2 - 9
difference = old garden - new garden
= x^2 - (x^2 - 9)
= 9
Answered by
Albert
Thanks a lot. This really helps me understand the problem better. Hope I can help someday! :)
Answered by
allison
well the answer is 142
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