Question: The length and width of a rectangle must have as sum of 72 feet. Find the dimensions of the rectangle that will have maximum area.

The length and width of a rectangle must have as sum of 72

feet. Find the dimensions of the rectangle that will have

maximum area.

the answer is 36 by 36 because a square is still a rectangle but i need to "show my work"

how do i write it out the long drawn out way or what is the formula

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