Use the product rule to simplify the expression: 5 to the power of 10×5 to the power of 3
5 to the power of 13
5 to the power of 30
25 the power of 13
5 to the power of 7
5 to the power of 10 × 5 to the power of 3 = 5^(10+3) = 5^13
Therefore, the simplified expression is 5 to the power of 13.