Factor by grouping.
\[
8 c^{2}+38 c+35
\]
The factored form of the expression \(8 c^{2}+38 c+35\) is \(\boxed{(2c + 7)(4c + 5)}\).
Step 1 :Group the terms in pairs: (8c^2 + 38c) + 35.
Step 2 :Factor out the greatest common factor (GCF) from each group. The GCF of the first group is 2c, and the GCF of the second group is 35.
Step 3 :After factoring out the GCF, we should have two terms that are the same. If they are not the same, then the expression cannot be factored by grouping.
Step 4 :The factored form of the expression \(8 c^{2}+38 c+35\) is \(\boxed{(2c + 7)(4c + 5)}\).