Simplify the expression.

5t^6∙5t^6

25t^12

To simplify the expression 5t^6*5t^6, we will multiply the coefficients and add the exponents.

The coefficient is 5 * 5 = 25.

The exponents are added together, so t^6 * t^6 = t^(6+6) = t^12.

Therefore, the simplified expression is 25t^12.