Mathematics, 18.03.2021 01:00, 0139236

A rectangle has a length of x and a width of 6x3 + 1 − x2. Find the perimeter of the rectangle when the length is 8 feet. The polynomial that models the perimeter of the rectangle is

The perimeter is
feet ???

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A rectangle has a length of x and a width of 6x3 + 1 − x2. Find the perimeter of the rectangle when...