Create a favorable polynomial with a GCF of 5z. Rewrite the polynomial in two other equivalent forms. EXPLAIN how each form was created! PLEASE SHOW ALL WORK!

Start by multiplying 5z by the sum of two terms, then 5z will definitely be factorable. 5z⋅2z+5z⋅7Multiply it out to get 10z2+35z
The GCF of 10 and 35 is 5.
The GCF of z2 and z is z.
Therefore the GCF of the new binomial above is 5z