Factor the polynomial completely. Find a GCF: –2x2 2 5x3 – 5x GCF = –2 GCF = 5x Factor out the GCF: –2(x2 – 1) 5x(x2 – 1) Which product of prime polynomials is equivalent to the original polynomial? (–2 – 5x)(x2 – 1) (–2 5x)(x2 – 1) (–2 – 5x)(x – 1)(x 1) (–2 5x)(x – 1)(x 1).