Question

1. write an expression for: the sum of a number squared and four.

Explanation:

Step1: Define the variable

Let the number be \( x \).

Step2: Square the number

The square of the number \( x \) is \( x^2 \).

Step3: Find the sum with four

The sum of \( x^2 \) and 4 is \( x^2 + 4 \).

Answer:

\( x^2 + 4 \) (where \( x \) represents the number)