## Understanding (7u)^2

In mathematics, **(7u)^2** represents the square of the expression (7u). This means we multiply the expression by itself:

**(7u)^2 = (7u) * (7u)**

To simplify this, we use the distributive property of multiplication:

**(7u) * (7u) = 7 * u * 7 * u**

Then, we rearrange the terms and perform the multiplication:

**7 * 7 * u * u = 49 * u^2**

Therefore, the simplified form of **(7u)^2** is **49u^2**.

### Key Points to Remember:

**Squaring an expression means multiplying it by itself.****The distributive property allows us to multiply each term within the parentheses separately.****When multiplying variables with exponents, we add the exponents.**

By following these steps, we can confidently simplify expressions involving squares of variables and coefficients.