[問題] 一題數學 急
A box with an open top is to be constructed by cutting x inch by x inch
squares from the corners of a 42 inch by 32 inch piece of cardboard. What
should the dimensions be, to two decimal places, that would maximize the
volume.
可以幫忙解釋這題嗎？不僅題目看不太懂，也不知從何算起....XD 謝謝！！
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