The area of a square is found by squaring one of its sides, (a = s2). a certain square has an area of z2 + 18z + 81. factor the trinomial to find a side of the square.

side = z + 27
side = z + 18
side = z + 9

Here is your answer

Given area is

z^2 + 18z + 81

= z^2 + 2× z × 9 + 9^2

[using (a+b)^2= a^2 + 2ab + b^2], we get

= (z+9)^2

we know that area of a square is represented by side^2.

So, here

Side of square is

HOPE IT IS USEFUL

The correct answer is z+9

Step-by-step explanation:

5

step-by-step explanation: