Evaluate 19^2

Problem

19

Solution

1. Identify the operation as squaring the number 19 which means multiplying the number by itself.

2. Set up the multiplication as 19×19

3. Apply the distributive property or long multiplication: 19×(20−1)=19×20−19×1

4. Calculate the products: 380 - 19 = 361$.

Final Answer

19=361

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