What is the value of 9999^2 + 19999？
100000000
19999998
9999
199999999
99999999
9999^2 + 19999 = 9999^2 + 9999 \times 2 + 1= 9999^2 + 2 \times 9999 \times 1 + 1^2= (9999 + 1)^2 = 10000^2= 100000000
Final result: \boxed{100000000}
