OpenStax, Precalculus 2e §3.4 Graphs of Polynomial Functions · Example 8 · Algebra · Polynomials
Using Local Extrema to Solve Applications
An open-top box is to be constructed by cutting out squares from each corner of a 14 cm by 20 cm sheet of plastic then folding up the sides. Find the size of squares that should be cut out to maximize the volume enclosed by the box.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Precalculus 2e · §3.4 Graphs of Polynomial Functions · Example 8
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