Find GCF: First, look for a greatest common factor (GCF) that can be factored out from all terms.GCF of 2p2, −40p, and 38 is 2.Factor out the GCF: 2(p2−20p+19).
Factor out GCF: Now, factor the quadratic inside the parentheses.We need two numbers that multiply to 2×19 (since the leading coefficient is 2) and add up to −20.The numbers are −1 and −38.