According to the synthetic division below, which of the following statements are true?

Which value is not a solution of 8x^3 – 1 = 0

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?