Answer:
Step-by-step explanation:
A square surface is determined by the product of its sides
s = L ^ 2
Thus, the surface of the cardboard of side C, will be
x ^ 2 + 12x + 36 = C ^ 2
Factoring
(x + 6) (x + 6) = C ^ 2
THE SIDE IS (x + 6)
Answer:
[tex]\boxed{(x+6)}[/tex]
Step-by-step explanation:
The surface of a square is [tex]\sf side^2[/tex].
[tex]s^2 =x^2 +12x+36[/tex]
Take the square root on both sides.
[tex]s=\± \sqrt{x^2+12x+36}[/tex]
[tex]s=\± (x+6)[/tex]
The side of the cardboard cannot be a negative value.
