Find GCF and Factor: First, look for a greatest common factor (GCF) in all three terms.GCF of 5h2, 20h, and −25 is 5.Factor out the GCF: 5(h2+4h−5).
Factor Trinomial: Now, factor the trinomial h2+4h−5. We need two numbers that multiply to −5 and add to 4. The numbers are 5 and −1. Rewrite the middle term using these numbers: h2+5h−h−5.
Group and Factor: Group the terms: (h2+5h)−(h+5).
Factor by Grouping: Factor by grouping.Take out the common factor h from the first group: h(h+5).There's a −1 common in the second group: −1(h+5).Now we have: h(h+5)−1(h+5).
Factor Common Binomial: Factor out the common binomial (h+5): (h−1)(h+5).
Final Step: Don't forget the GCF we factored out at the beginning.Multiply it by the factored form of the trinomial: 5(h−1)(h+5).