Hardwood and laminate are mutually exclusive. If it is laminate then it can not be hardwood.
Most laminate has pretty durable wear layer unless it has gotten a lot of use and physically been worn off. The wear layer is hardened with aluminum dioxide.
I suggest cleaning with Bridgepoint's Wood Fresh floor cleaner. Use a cotton or microfiber bonnet under a 175 RPM floor machine. You can make a second pass with just damp bonnet for rinsing. A white pad can also be used. A red pad will be OK for really nasty floors, but usually not required. I like the bonnets because they absorb the soil and spend cleaning solution better than a floor pad.