liamr60749 liamr60749 22-06-2022 Mathematics contestada Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function? Determine whether –(x3 + 5x + 1) is equivalent to x3 + 5x + 1. Determine whether (–x)3 + 5(–x) + 1 is equivalent to x3 + 5x + 1. Determine whether –x3 + 5x + 1 is equivalent to –(x3 + 5x + 1). Determine whether (–x)3 + 5(–x) + 1 is equivalent to –(x3 + 5x + 1).