Here it says provide the equation when sulfuric acid dissolves in a solvent. Sulfuric acid is a strong acid, so if we're talking about its complete dissociation, we're going to say here H2SO4 and we're going to break it up into its ions. It possesses 2H+ aqueous ions plus SO42- aqueous ions sulfate ion.
So here we'd say sulfuric acid will produce 2H+ aqueous plus SO42-. When we get into later chapters on acid and based chemistry, we'll learn further that this acid actually doesn't lose both hydrogen's at the same time, H+ it actually loses them in stages.
But this early on in chemistry just realized that overall, if this were to completely break up into ions, it would break up into two H+ ions and 1 sulfate ion.