1. **State the problem:** Simplify the expression $ (6 \times 5)^2 $. 2. **Recall the formula:** When you have a product inside parentheses raised to a power, use the rule $ (ab)^n = a^n b^n $. 3. **Apply the rule:** $$ (6 \times 5)^2 = 6^2 \times 5^2 $$ 4. **Calculate each power:** $$ 6^2 = 36 $$ $$ 5^2 = 25 $$ 5. **Multiply the results:** $$ 36 \times 25 = 900 $$ 6. **Final answer:** $$ (6 \times 5)^2 = 900 $$