Keywords:
<em>Divide, polynomial, quotient, divisor, dividend, rest
</em>
For this case, we must find the quotient by dividing the polynomial
. We must build a quotient that, when multiplied by the divisor, eliminates the terms of the dividend until it reaches the rest, as shown in the attached figure. At the end of the division, to verify we must bear in mind that:

Answer:
See attached image
A = L * W
A = 357
W = 17
357 = 17L
357 / 17 = L
21 = L <== length is 21 inches