Concept:Solve the equation by simplifying square roots and performing division, then addition.Explanation:First, find the square roots: 529=23 and 576=24.Then rewrite the equation: 23÷23+24=1×x.Perform division: 23÷23=1.Add: 1+24=25.So, 1×x=25, hence x=25.Answer:25 (Option C)