Assumed Question: A square has side length (x +5) units. What is its area?
Answer:
[tex]x^2+10x+25\text{ square units}[/tex]Explanation:
A square has equal side lengths. So to find the area of a square with a side length of (x + 5) unit, we'll use the below formula and solve for A;
[tex]\begin{gathered} A=l\times l \\ =(x+5)(x+5) \\ =x^2+5x+5x+25 \\ \therefore A=x^2+10x+25_{}\text{square units} \end{gathered}[/tex]